Definition
Lilly usually refers to William Lilly (1602–1681), an influential English astrologer best known for his work in horary astrology. His major text, Christian Astrology, systematically explains traditional methods for judging questions, natal charts, and annual developments. Lilly’s approach draws heavily on earlier Hellenistic, Arabic, and medieval European astrological traditions.
Astrological Meaning
In astrological study, Lilly is associated particularly with horary technique: casting a chart for the moment a sincere question is received and understood by the astrologer. His method emphasizes planetary dignities, house rulership, aspects, reception, timing, and whether a chart is suitable for judgment. He also discusses natal delineation and predictive practices. Modern practitioners may adapt his rules rather than apply them rigidly, especially when interpreting older terminology within contemporary life.
Why It Matters
Lilly matters because his writings preserve a detailed working model of traditional astrology and show how separate chart factors can be combined into a reasoned judgment. Studying his methods can strengthen understanding of planetary condition, symbolic rulership, and chart synthesis. His historical context is equally important: some assumptions in seventeenth-century texts do not translate directly to modern practice. Reading Lilly critically helps astrologers distinguish enduring techniques from period-specific language and social conventions.
Related Encyclopedia Entries
- Traditional Astrology
- Horary Astrology
- Essential Dignity
- Planetary Reception
- Natal Chart


