ZOHAR 1

It is written: And the intelligent shall shine like the brightness of the firmament, and they that turn many to righteousness like the stars for ever and ever (Dan. XII, 3). There was indeed a "brightness" (Zohar). The Most Mysterious struck its void, and caused this point to shine. This "beginning" then extended, and made for itself a palace for its honour and glory. There it sowed a sacred seed which was to generate for the benefit of the universe, and to which may be applied the Scriptural words "the holy seed is the stock thereof" (Is. VI, 13). Again there was Zohar, in that it sowed a seed for its glory, just as the silkworm encloses itself, as it were, in a palace of its own production which is both useful and beautiful. Thus by means of this "beginning" the Mysterious Unknown made this palace. This palace is called Elohim, and this doctrine is contained in the words, "By means of a beginning (it) created Elohim." The Zohar is that from which were created all the creative utterances through the extension of the point of this mysterious brightness.

-Zohar, Vol I, p. 15a