“The ‘very old Book’ is the original work from which the many volumes of Kiu-ti were compiled. Not only this latter and the Siphrah Dzeniouta but even the Sepher Jezirah, the work attributed by the Hebrew Kabalists to their Patriarch Abraham (!), the book of Shu-king, China’s primitive Bible, the sacred volumes of the Egyptian Thoth-Hermes, the Puranas in India, and the Chaldean Book of Numbers and the Pentateuch itself, are all derived from that one small parent volume. Tradition says, that it was taken down in Senzar, the secret sacerdotal tongue, from the words of the Divine Beings, who dictated it to the Sons of Light, in Central Asia, at the very beginning of our Fifth race; for there was a time when its language (the Senzar) was known to the Initiates of every nation, when the forefathers of the Toltec understood it as easily as the inhabitants of the lost Atlantis, who inherited it, in their turn, from the sages of the Third Race, the Manushis, who learnt it direct from the Devas of the Second and First Races.”
“The Book of Dzyan . . . is the first volume of the Commentaries upon the seven secret folios of Kiu-te, and a Glossary of the public works of the same name. Thirty-five volumes of Kiu-te for exoteric purposes and the use of the laymen may be found in the possession of the Tibetan Gelugpa Lamas, in the library of any monastery; and also fourteen books of Commentaries and Annotations on the same by the initiated Teachers. Strictly speaking, those thirty-five books ought to be termed ‘The Popularised Version’ of the Secret Doctrine, full of myths, blinds, and errors; the fourteen volumes of Commentaries, on the other hand—with their translations, annotations, and an ample glossary of Occult terms, worked out from one small archaic folio, the Book of the Secret Wisdom of the World—contain a digest of all the Occult Sciences.”
Senzar The name given to the ancient mystery-language unknown to modern philologists, that was known to all initiates of the inhabited and civilized world; the secret sacerdotal language or mystery-speech of the adepts of whatever class belonging to or owing allegiance to the chief esoteric brotherhood, “still used and studied unto this day in the secret communities of the Eastern adepts, and called by them — according to the locality — Zend-zar and Brahma or Deva-Bashya” (BCW 4:518n). In this language, besides its common use as a universal means of intercommunication, were written the secret works preserving the history of the archaic continents and races, as well as prophecies of the future. It was used in the secret commentaries and stanzas forming the basis for The Secret Doctrine, wherein they are called the Stanzas of Dzyan or the Book of Dzyan.
“Tradition says, that it was taken down in Senzar, the secret sacerdotal tongue, from the words of the Divine Beings, who dictated it to the sons of Light, in Central Asia, at the very beginning of the 5th (our) race; for there was a time when its language (the Sen-zar) was known to the Initiates of every nation, when the forefathers of the Toltec understood it as easily as the inhabitants of lost Atlantis, who inherited it, in their turn, from the sages of the 3rd Race, the Manushis, who learnt it direct from the Devas of the 2nd and 1st Races” (SD 1:xliii).
As to the mode of writing this mystery-speech, “The sacerdotal language (Senzar), besides an alphabet of its own, may be rendered in several modes of writing in cypher characters, which partake more of the nature of ideographs than of syllables” (VS vii).