Maitreya is the secret name of the Fifth Buddha, and the Kalki Avatar of the Brahmins - the last Messiah who will come at the culmination of the Great Cycle.

Helena Petrovna Blavatsky (Russian: Елена Петровна Блаватская, Yelena Petrovna Blavatskaya, often known as Madame Blavatsky; née von Hahn; Ukrainian: Олена Петрівна Блаватська, Olena Petrivna Blavatska; 12 August O.S. 31 July 1831 – 8 May 1891), better known as "Helena Blavatsky" or "Madame Blavatsky", was an occultist, spirit medium, and author who co-founded the Theosophical Society in 1875. She gained an international following as the leading theoretician of Theosophy, the esoteric movement that the Society promoted. Blavatsky was a controversial figure during her lifetime, championed by supporters as an enlightened Sage and derided as a charlatan by critics. Her Theosophical doctrines influenced the spread of Hindu and Buddhist ideas in the West as well as the development of Western esoteric currents like Anthroposophy, and the New Age Movement.