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Isis Unveiled: A Master-Key to the Mysteries of Ancient and Modern Science and Theology
Helena Petrovna Blavatsky
Isis Unveiled: A Master-Key to the Mysteries of Ancient and Modern Science and Theology
Source verified · September 2026
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About Helena Petrovna Blavatsky
Helena Petrovna Blavatsky (1831–1891) was a Russian occultist and co-founder of the Theosophical Society. Her major writings, especially *Isis Unveiled* and *The Secret Doctrine*, drew together comparative religion, esotericism, and speculative cosmology, exerting a profound influence on modern esoteric and spiritual thought.
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A Key to Physic, and the Occult Sciences. Opening to Mental View, the System and Order of the Interior and Exterior Heavens; the Analogy betwixt Angels, and the Spirits of Men; and the Sympathy between Celestial and Terrestrial Bodies … [including] Animal Magnetism … To Which are Added, Lunar Tables, Calculated from Sidereal Motion; Exhibiting … the Actual Moment of the Crisis of Every Disease … The Whole Forming an Interesting Supplement to Culpeper’s Family Physician, and Display of the Occult Sciences
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