H. P. BlavatskyHelena Petrovna Blavatsky (1831-1891) was a prominent Russian occultist, philosopher, and author who co-founded the Theosophical Society in 1875. Blavatsky's works, including "The Secret Doctrine," explored esoteric teachings, spiritualism, and the nture of reality. She played a significant role in the spiritual movement of the late 19th century, advocating for universal brotherhood, the study of ancient wisdom, and the pursuit of divine knowledge. Read More Read Less