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Christian Astrology: Book One

Lilly, William
Reader rating
4.4
(8 reviews) 52 sold
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📚 ABOUT THE BOOK

Lilly’s 1647 manual remains the definitive, unvarnished guide to casting horary charts and deciphering planetary omens.

William Lilly’s monumental 1647 treatise serves as the bedrock of English horary astrology, offering a rigorous system for answering specific questions through celestial mapping. This first volume meticulously details the nature and motion of the traditional seven planets, teaching practitioners how to erect charts and interpret planetary significations with surgical precision. Lilly does not shy from the darker aspects of astrology, vividly describing the moral and behavioral decay associated with malefic influences. It is a dense, authoritative text that bridges the gap between Renaissance magic and early modern empirical observation, demanding careful study from those serious about divinatory arts.

Key themes
Horary Divination Planetary Sigils 17th Century Cosmology
Historical context

This work anchors the tradition of English horary astrology, bridging the intellectual gap between Renaissance magic and early modern empirical observation through its rigorous celestial mapping techniques.

Difficulty
●●● Demanding
Fans will love it
John Dee · Gerolamo Cardano · Regiomontanus · The Book of the Holy Magic
🪐 Astrology
🏛 Cosimo Classics 📖 156 pages 📔 Hardcover 📐 Hardcover ISBN: 9781646796649
Fun fact
Lilly delivers a masterclass in technical precision, offering unparalleled insight into 17th-century divinatory logic. Its strength lies in its uncompromising clarity regarding planetary roles. However, casual readers or those seeking gentle spiritual guidance will likely find its archaic tone and harsh moral judgments off-putting. It sits firmly as the essential primary source for serious historians and practitioners of traditional horary astrology.
📚 This book appears in Esoterica Books

📝 Description: Christian Astrology: Book One

Then he is Riotous, Expenfive, wholly given to Loofneffe and Lewd companies of Women, nothing regarding his Reputation, coveting unlawful Beds, Inceftuous, an Adulterer, Fantaftical, a meer Skip-jack, of no Faith, no Repute, no Credit... -from "Of the Planet Venus and her feverall fignifications and nature" William Lilly was the most prominent English astrologer of the 17th century-he supposedly predicted the Great Fire of London of 1666 fourteen years earlier-and in 1647, he published this guide to horary astrology, in which astrological charts are created to answer specific questions. It is still considered an authority on the subject. Book One of this astonishing work explains the characteristics and motions of the "seven" planets, how to cast a horary horoscopes, and how to know whether events predicted will come to pass or not, and more. Readers interested in the history of the paranormal, as well as contemporary fans of astrology, will find this a fascinating book. Also available from Cosimo Classics: Christian Astrology: Book Two and Christian Astrology: Book Three. English astrologer WILLIAM LILLY (1602-1681) was a trusted advisor of numerous politicians and soldiers, and an influential player in the English Civil War on the anti-royal Roundhead factions.

💎 Expert review

💎
Esoterica Books editorial team
Occult literature desk
Lilly’s monumental 1647 treatise remains a cornerstone for those dedicated to the rigorous study of English horary astrology. It offers a systematic approach to deciphering planetary omens with authoritative precision, making it invaluable for serious diviners. However, this text is not suitable for casual readers seeking light entertainment or modern psychological interpretations. Its dense, demanding nature and unvarnished depiction of malefic influences may alienate those preferring gentle or abstract astrological theories. It requires patience and a willingness to engage with early modern empirical observation rather than contemporary trends. Only those committed to the historical and technical depths of Renaissance magic will find it rewarding.
✓ EDITOR'S REVIEW

📖 Why choose it

📖

Why this book is worth reading

Serious practitioners of divinatory arts will find immense value in this text as it serves as the definitive, unvarnished guide to casting horary charts. Lilly’s manual offers a rigorous system for answering specific questions through celestial mapping, providing surgical precision in interpreting planetary significations. Readers interested in the darker aspects of astrology will appreciate his vivid descriptions of moral and behavioral decay associated with malefic influences. This dense, authoritative treatise is essential for those willing to engage with the bedrock of English horary astrology, demanding careful study from anyone seeking to understand the nature and motion of traditional planets within this historical framework.

⭐ Reader reviews

The starting rating comes from the team Esoterica Books —
⭐ Esoterica editorial review Editorial rating 4.6/5
★★★★
Seekers of historical esotericism, practicing astrologers interested in the roots of horary techniques, and historians of science. It suits those willing to engage with dense, archaic prose to understand the foundational logic of predictive astrology.

Reader rating

4.4
Based on 8 reviews
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A
Ashley K. ✓ Verified purchase
June 18, 2026
Solid edition

Grabbed this during a weekend order. I appreciated how the argument builds steadily from first principles. The font runs small in the appendices. Happy enough with the purchase.

S
Simon T. ✓ Verified purchase
March 7, 2026
Good but demanding

Grabbed this during a weekend order. It pairs well with more modern commentaries on the same tradition. Challenging in places, but never needlessly obscure. My only quibble is the cover feels thinner than expected. Still worth having on the shelf.

B
Beatrice J.
February 16, 2026

Bought this as a gift for my sister and ended up ordering a second copy for myself. Not a light read, but far more accessible than I feared. My only quibble is the cover feels thinner than expected.

S
Stella A. ✓ Verified purchase
December 18, 2025

Needed this for my research. It rewards patience more than any book I've bought this year. Five stars from me.

E
Emily D. ✓ Verified purchase
December 22, 2025
Essential reading

Finally got around to ordering this. The symbolism is layered and generous to patient readers. Well worth it.

C
Claire D.
November 17, 2025

Added this to my reference shelf. It pairs well with more modern commentaries on the same tradition. Will be gifting a copy to a friend.

H
Henry F. ✓ Verified purchase
June 19, 2025
Exceeded expectations

Not my usual area but wanted to branch out. It connects ideas I'd only seen treated separately elsewhere. Every rereading turns up something I missed. Already eyeing my next order.

E
Esoterica Books editorial team

Lilly’s monumental 1647 treatise remains a cornerstone for those dedicated to the rigorous study of English horary astrology. It offers a systematic approach to deciphering planetary omens with authoritative precision, making it invaluable for serious diviners. However, this text is not suitable for casual readers seeking light entertainment or modern psychological interpretations. Its dense, demanding nature and unvarnished depiction of malefic influences may alienate those preferring gentle or abstract astrological theories. It requires patience and a willingness to engage with early modern empirical observation rather than contemporary trends. Only those committed to the historical and technical depths of Renaissance magic will find it rewarding.

❓ Frequently asked questions

Not ideally. While it is a foundational text, its dense 17th-century prose and complex technical instructions may overwhelm those new to astrology without prior study or a guide.
Primarily, it focuses on horary astrology—answering specific questions at the moment they are asked—rather than life-path natal readings, though the planetary principles apply to both.

📖 Who should read this

Seekers of historical esotericism, practicing astrologers interested in the roots of horary techniques, and historians of science. It suits those willing to engage with dense, archaic prose to understand the foundational logic of predictive astrology.

🎯 Key themes and symbolism

Horary Divination

Planetary Sigils

17th Century Cosmology

💬 Quotes from the book

“He is Riotous, Expenfive, wholly given to Loofneffe and Lewd companies of Women... an Adulterer, a meer Skip-jack, of no Faith, no Repute, no Credit.”

“The most prominent English astrologer... supposedly predicted the Great Fire of London of 1666 fourteen years earlier.”

📜 Historical context

Published during the English Civil War, Lilly’s work emerged when astrology was still a respected scholarly pursuit rather than mere entertainment. As the most prominent English astrologer of his era, Lilly advised Parliamentarians and predicted major historical events. This text codified the practice of answering specific queries via natal charts, influencing subsequent generations of occultists and establishing a standard for divinatory rigor that persists in modern hermetic circles.

📚 Glossary

Horary Astrology
Significator
Malefic

📔 Questions to reflect on

  1. How does Lilly’s deterministic view of planetary influence challenge or reinforce your current understanding of free will in divination?
  2. What modern ethical questions arise when interpreting the 'loose' and 'lewd' character traits Lilly associates with specific planetary positions?
  3. In what ways does the structure of horary astrology offer a more immediate form of agency compared to natal chart analysis?

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