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Encyclopedia

People, places, and concepts that appear across multiple books in the collection. Discover connections between texts.

605
Total
198
People
88
Places
319
Concepts
AllABCDEFGHIJKLMNOPQRSTUVWXYZ
By relevanceA – Z

605 results starting with “R”

Rome

The historical center of the Roman Empire and the Catholic Church, serving as a pivotal site for the transmission of classical and Christian thought.

326 books · 12255 mentions

Know Thyself, O Man: Astrology TheologizedDetailed Report on the Use of the Physico-Astrological Instrument+1 more

Radical Moisture

A fundamental concept in early physiology and alchemy referring to the innate fluid that sustains life and provides the fuel for the body's natural heat.

59 books · 1392 mentions

PreviousPage 1 of 11Next
New Chemical Light
Medical Letters, Volume One
+1 more

Red Sea

A seawater inlet of the Indian Ocean, significant in biblical and esoteric traditions for the Exodus narrative and often interpreted allegorically in alchemy as the transformative waters of the soul.

51 books · 823 mentions

On the Ancient Hermetic Medicine of the Egyptians and the New Medicine of the ParacelsiansDivine Comedy with Landino Commentary (1487 Incunabulum)+1 more

Roger Bacon

A 13th-century English Franciscan friar and scholastic philosopher known for his emphasis on empiricism and his legendary reputation as a wizard or alchemist in later esoteric traditions.

46 books · 1114 mentions

Theatrum Chemicum BritannicumRevealer of the Great Secret of the Philosophers+1 more

Rhodes

A Greek island in the Aegean Sea, historically significant for its Colossus and its role as a maritime power and center for Hellenistic philosophy and science.

45 books · 923 mentions

The Strife of Love in a Dream, or the Discourse of the Dream of PoliphiloTen Books on Architecture+1 more

Raymond Lully

A Majorcan philosopher and mystic whose combinatorial system of logic, the Ars Magna, influenced early modern science. Although he was not an alchemist, a vast corpus of pseudo-Lullian alchemical texts was attributed to him, making him a central figure in esotericism.

39 books · 1110 mentions

Theatrum Chemicum BritannicumLehigh Codex (15th c. Naples Alchemical MS)+1 more

René Descartes

A French philosopher and mathematician regarded as the father of modern philosophy for his rationalist approach and the development of mind-body dualism.

37 books · 3555 mentions

The Great Art of Light and ShadowNewton: Principia (1726 Third Edition)+1 more

Rational Soul

In Aristotelian and Neoplatonic thought, the highest part of the soul unique to humans that enables reasoning, intellect, and the apprehension of divine truths.

37 books · 679 mentions

New Chemical LightMedical Letters, Volume One+1 more

Retrograde motion

The apparent backward motion of a planet in the sky, a phenomenon central to the development of both geocentric and heliocentric astronomical models.

37 books · 654 mentions

On the Revolutions of the Celestial SpheresOn the Revolutions of the Heavenly Spheres (1543 First Edition)+1 more

Refraction

The change in direction of a wave, such as light, passing from one medium to another, a fundamental concept in early modern optics and natural philosophy.

34 books · 1328 mentions

The universal wisdom of Raymundo LullioMagia Naturalis Libri XX (1607)+1 more

Rhazes

A Persian polymath and physician whose influential works in medicine and alchemy, such as the 'Secret of Secrets', were foundational to the development of Western science.

32 books · 857 mentions

Aphoristic Astrology of Ptolemy, Hermes, and OthersThe Book of Meteors; Fourth Book of Paramirum on the Matrix+1 more

Romulus

The legendary founder and first king of Rome, often appearing in early modern historical and political treatises on the origins of civilization.

27 books · 481 mentions

Essay on the Sacred Fire and on the VestalsTen Books on Architecture+1 more

Robert Fludd

An English Paracelsian physician and occultist whose massive works attempted to synthesize all knowledge through the lens of Hermeticism and music.

25 books · 1651 mentions

Oedipus Aegyptiacus Volume II (1653)Harmonices Mundi (1619 First Edition)+1 more

Robert Boyle

An Anglo-Irish natural philosopher and chemist regarded as one of the founders of modern chemistry and a pioneer of the modern experimental scientific method.

25 books · 535 mentions

Key to the secrets of natureNewton: Principia (1726 Third Edition)+1 more

Russia

A vast transcontinental country in Eastern Europe and Northern Asia, frequently mentioned in early modern texts regarding its natural resources, political expansion, and unique religious traditions.

25 books · 455 mentions

The Great Art of Light and ShadowCardano: De Subtilitate (1550)+1 more

Rudra

A major Vedic deity associated with the storm, hunt, and destruction, serving as an early form of the god Shiva in Hindu and Tantric traditions.

25 books · 388 mentions

Kularnava TantraBrihat Samhita+1 more

Raymond Lull

A Majorcan philosopher, logician, and mystic whose 'Ars Magna' sought to integrate all knowledge through a combinatorial system of symbols. He was widely, though often pseudepigraphically, associated with alchemy and the Hermetic tradition in the early modern era.

23 books · 399 mentions

Lehigh Codex (15th c. Naples Alchemical MS)Silence after the clamors, that is, Apology and Responsibility+1 more

Repentance

The act of expressing sincere regret for past sins accompanied by a commitment to change, a central tenet of Christian soteriology and spiritual practice.

23 books · 276 mentions

Essence of PomegranatesHistorical-Theological Considerations of Remarkable Truths+1 more

Ramon Llull

A Majorcan philosopher, logician, and mystic known for his 'Ars Magna,' a system of combinatory logic intended to prove Christian truths. His work deeply influenced Renaissance hermeticism, mnemonics, and the development of early computing concepts.

22 books · 1008 mentions

Llull: Ars Magna Generalis (1517)The Latin Works of Giordano Bruno+1 more

Rachel

A biblical matriarch and wife of Jacob, often interpreted in esoteric and kabbalistic traditions as a symbol of the contemplative life or the Shekhinah.

21 books · 484 mentions

Divine Comedy with Landino Commentary (1487 Incunabulum)A Christian and Heavenly Treatise: Containing Medicine for the Soul+1 more

Rama

A major deity in Hinduism and the protagonist of the Ramayana, recognized in Western esoteric encounters with Eastern texts as a figure of solar wisdom.

21 books · 416 mentions

PhaladeepikaSaravali+1 more

Raphael

An archangel in Judeo-Christian tradition associated with healing and guidance, often invoked in Solomonic magic and alchemical texts as a celestial mediator.

20 books · 530 mentions

Lomazzo: Trattato (1584 Milan)Philosophia sacra et vere christiana seu Meteorologia cosmica+1 more

Rhine

A major European river that served as a vital geographic and cultural artery for the spread of Paracelsian medicine, alchemy, and the Rosicrucian manifestos.

20 books · 303 mentions

Cosmographia (Geography)Paracelsus: Complete Works (Latin)+1 more

Regeneration

A spiritual and alchemical concept of rebirth or renewal, often linked to the Hermetic 'Palingenesis' or the Christian doctrine of being born again.

19 books · 474 mentions

Pymander. Asclepius. On the Mysteries of the Egyptians. On Plato's Alcibiades, on the Soul and the Daemon. On Sacrifice.Works of Jacob Behmen (William Law Edition, 4 vols)+1 more

Resurrection

The theological concept of rising from the dead, explored in esoteric contexts as both a literal event and a spiritual transformation or palingenesis.

18 books · 518 mentions

Llull: Ars Magna Generalis (1517)Theologia platonica de immortalitate animorum+1 more

Rarefaction and Condensation

Physical processes in Aristotelian and early modern physics describing the expansion and contraction of matter, used to explain the transformation of elements.

17 books · 362 mentions

Two Treatises: On the Nature of Elements & On the Fifth EssenceRevealer of the Great Secret of the Philosophers+1 more

Regensburg

A historic city in Bavaria, Germany, which served as a significant political and religious center, hosting the Perpetual Diet and influencing early modern European diplomacy and theology.

17 books · 323 mentions

Oedipus Aegyptiacus Volume I (1652)Theosophia Practica+1 more

Right Ascension

The angular distance of a celestial body measured eastward along the celestial equator from the vernal equinox, used to map stellar positions.

16 books · 493 mentions

On the Revolutions of the Celestial SpheresOn the Revolutions of the Heavenly Spheres (1543 First Edition)+1 more

Rosicrucianism

A spiritual and cultural movement of the 17th century that sought a universal reformation of mankind through alchemy, Kabbalah, and Christian mysticism.

16 books · 301 mentions

Historical-Theological Considerations of Remarkable TruthsChemical Wedding (1616 Strassburg)+1 more

Redemption

The theological concept of deliverance from sin or error, often interpreted in esoteric traditions as the restoration of the soul to its primordial state.

16 books · 227 mentions

Essence of PomegranatesStories for Pleasure and Edification+1 more

Retrogradation

The apparent backward motion of a planet through the zodiac, a phenomenon central to the development of both geocentric and heliocentric astronomical models.

15 books · 267 mentions

Aphoristic Astrology of Ptolemy, Hermes, and OthersEight Books on Astronomy+1 more

Rahu

In Hindu astrology (Jyotisha), the north lunar node and a shadow planet responsible for eclipses and representing worldly desire and chaos.

15 books · 218 mentions

Brihat SamhitaPrasna Marga+1 more

Rarefaction

The reduction of a medium's density, the opposite of condensation; a key concept in early modern natural philosophy regarding the behavior of air and matter.

14 books · 361 mentions

Drebbel: Tractatus duo (1628 Latin)Utriusque cosmi majoris scilicet et minoris metaphysica, physica atque technica historia+1 more

Rhetoric

One of the three liberal arts of the Trivium, focusing on the art of persuasion and eloquent speech, essential to humanist education and classical philosophy.

14 books · 210 mentions

Lives and Opinions of Eminent PhilosophersComplete Works of Plato, translated by Marsilio Ficino (1518)+1 more

Regulus of Antimony

The metallic form of antimony obtained by reducing its sulfide ore, often appearing with a star-like crystalline pattern on its surface. It was highly significant in the alchemy of Basil Valentine and Isaac Newton as a key ingredient in the quest for the philosopher's stone.

13 books · 444 mentions

Triumphant Chariot of AntimonyMiracula chymico-medica (with Sendivogius Novum Lumen)+1 more

Rectification

In alchemy, the process of purifying a liquid by repeated distillation; in astrology, the procedure used to determine the exact time of a birth.

13 books · 305 mentions

Eight Books on AstronomyTheatrum Chemicum Vol. III (1602)+1 more

Ravenna

An Italian city that served as the capital of the Western Roman Empire and later the Exarchate, significant for its Byzantine architecture and as a center of legal study during the Renaissance.

12 books · 187 mentions

Biographies of Famous Men from the Times of the Revival of the SciencesDivine Comedy with Landino Commentary (1487 Incunabulum)+1 more

Roman Empire

The post-Republican period of ancient Rome, whose legal, political, and cultural legacy formed the foundational framework for Western European civilization and the Holy Roman Empire.

12 books · 182 mentions

De Arte Cabalistica (in Galatino, 1550)Landino: Dante Commentary (1481 Florence)+1 more

Retrograde motion (Vakra)

The apparent motion of a planet in a direction opposite to that of other bodies within its system, analyzed in Jyotisha as 'Vakra' to determine planetary strength.

11 books · 205 mentions

Surya Siddhanta with Gudhartha-prakasakaGraha Laghava with Vishvanatha Commentary+1 more

Republic of Letters

A long-distance intellectual community in the late 17th and 18th centuries that fostered communication among the scholars of Europe and the Americas. It emphasized the shared pursuit of knowledge across national and religious boundaries through correspondence and printed journals.

11 books · 165 mentions

The universal wisdom of Raymundo LullioOedipus Aegyptiacus Volume I (1652)+1 more

Rebecca

A biblical matriarch, the wife of Isaac and mother of Jacob and Esau, frequently discussed in Kabbalistic and theological commentaries. She is often interpreted allegorically in esoteric texts as representing specific virtues or stages of spiritual development.

11 books · 117 mentions

Spiritual Pastimes of the Christian Day, or Weighty Observations of the BelieversFour Little Treatises+1 more

Rhadamanthus

A mythological judge of the dead in the underworld, often discussed in Neoplatonic texts regarding the fate of the soul and divine justice.

10 books · 234 mentions

Complete Works of Plato, translated by Marsilio Ficino (1518)Opera Omnia (Complete Works)+1 more

Reverberation

An alchemical process involving the heating of a substance in a furnace where the flame is reflected or 'reverberated' back onto the material. It was used for calcination and the purification of metals, symbolizing the intense spiritual refinement of the soul in esoteric thought.

10 books · 227 mentions

Paramirum WorksDe Restituta utriusque medicinae vera praxi+1 more

Rimini

An Italian city on the Adriatic coast that served as a major center of humanism and architecture under the patronage of the Malatesta family during the Renaissance.

10 books · 226 mentions

Divine Comedy with Landino Commentary (1487 Incunabulum)Alciato: Emblemata (1548 Lyon)+1 more

Reverberatory furnace

A type of metallurgical or alchemical furnace that isolates the material being processed from contact with the fuel, reflecting heat from the roof onto the substance. It was crucial in early modern chemistry and alchemy for controlled heating and smelting.

10 books · 199 mentions

Magia Naturalis Libri XX (1607)Lehigh Codex (15th c. Naples Alchemical MS)+1 more

Retrograde

The condition of a celestial body moving in a direction opposite to that of other bodies within its system, often interpreted as an ill omen in astrology.

10 books · 162 mentions

Aphoristic Astrology of Ptolemy, Hermes, and OthersPicatrix (Ghayat al-Hakim)+1 more

Resignation (Gelassenheit)

A central concept in German mysticism, particularly in the works of Jacob Böhme, describing the soul's total surrender of self-will to the divine will.

10 books · 151 mentions

Four Little TreatisesWorks of Jacob Behmen (William Law Edition, 4 vols)+1 more

Royal court

The administrative and social circle surrounding a monarch, acting as a primary site for the patronage of alchemy, science, and the arts. It is often used as a symbolic setting in Rosicrucian and hermetic allegories of transformation.

10 books · 150 mentions

Chemical Wedding (1616 Strassburg)History of Both Worlds: Macrocosm+1 more

Raphael (Angel)

An archangel in the Abrahamic traditions, often associated with healing, travel, and the guidance of the soul. In Western esotericism and grimoires, he is frequently invoked as the ruler of the planet Mercury or the element of Air.

10 books · 137 mentions

The Discovery of WitchcraftCommentary on Dante (1481 incunabulum)+1 more

Reminiscence

The Platonic doctrine that all learning is a form of remembering knowledge the soul possessed before birth in the realm of the Forms.

10 books · 118 mentions

Opera Omnia (Complete Works)Iamblichus De Mysteriis (1497 Aldine)+1 more

Robert Hooke

An English polymath and experimental philosopher whose work in microscopy, mechanics, and astronomy was foundational to the Scientific Revolution and the Royal Society.

9 books · 221 mentions

Newton: Principia (1726 Third Edition)Micrographia (1665 First Edition)+1 more

Reuben

The eldest son of Jacob and Leah and the founder of one of the twelve tribes of Israel. In mystical and Swedenborgian interpretations, he often symbolizes faith in the understanding or the first stage of spiritual regeneration.

9 books · 205 mentions

Mysterium MagnumMonumenta Sacra Inedita (Tischendorf)+1 more

Regulus

The brightest star in the constellation Leo, historically significant in alchemy as a symbol of the 'Royal Star' and the 'Cor Leonis' (Heart of the Lion).

9 books · 173 mentions

Triumphant Chariot of AntimonyAlchymia: Comprehensive Treatise on Alchemy+1 more

Resurrection of the dead

The eschatological belief in various religions that the deceased will be brought back to life, a central theme in Kabbalistic and Christian texts.

9 books · 145 mentions

The Zohar: Book of GenesisMonumenta Sacra Inedita (Tischendorf)+1 more

Red Tincture

In alchemy, the final stage of the Great Work, representing the perfected Philosopher's Stone capable of transmuting base metals into gold and providing physical immortality. It is associated with the rubedo stage and the Red Lion.

9 books · 134 mentions

Mature Philosophy, or a Detailed Philosophical TreatiseAurora thesaurusque philosophorum+1 more

Rostock

A prominent Hanseatic city in northern Germany and home to one of the oldest universities, significant for Renaissance medicine and alchemy.

9 books · 133 mentions

Two Treatises: On the Nature of Elements & On the Fifth EssenceHistorical-Theological Considerations of Remarkable Truths+1 more

River Lethe

One of the rivers of the underworld in Greek mythology, whose waters caused those who drank them to forget their past lives. It is frequently used in Neoplatonic allegories concerning the soul's descent into the material world.

9 books · 125 mentions

Complete Works of Plato, translated by Marsilio Ficino (1518)Platonic Theology on the Immortality of Souls (1525 Edition)+1 more

Rhea

A Titaness in Greek mythology, the mother of the Olympian gods, often identified with the Earth Mother or Cybele. In Neoplatonic and Orphic traditions, she represents the generative power of the divine and the soul of the world.

9 books · 110 mentions

Complete Works of Plato, translated by Marsilio Ficino (1518)Divine Comedy with Landino Commentary (1487 Incunabulum)+1 more

Royal Society

Founded in 1660, the oldest national scientific institution in the world, which played a pivotal role in the development of the experimental method and modern science.

9 books · 98 mentions

Pious PhilosophyPhilosophiae Naturalis Principia Mathematica (1687 First Edition)+1 more

Reincarnation

The philosophical or religious belief that the soul, after death, begins a new life in a new body, often discussed in Hermetic and Theosophical texts.

9 books · 89 mentions

Opera Omnia (Complete Works)Death--and After?+1 more