Quotes:Taittiriya Upanishad
Zirkoff, Boris
*Taittiriopanishad. In The Twelve Principal Upanishads (Engl, tr.) publ. by Tookaram Tatya. Bombay: Bombay Theos. Publ. Fund, 1891. See Vol. VIII, p. 415, for further data.
Source: Boris de Zirkoff, «H. P. Blavatsky Collected Writings», vol. 4, p. 666