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Spiritual Progress
Helena Petrovna Blavatsky
Spiritual Progress
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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