Israel Regardie

“The Holy Spirit or the Shechinah, as we have already observed, is symbolized by the letter ש Shin. When, therefore, a man has invoked the Spiritual Self, his Holy Guardian Angel, and attained to His Knowledge and Conversation, the process is described as the descent of the letter ש Shin into the midst of the elemental name of יהוה Tetragrammaton, thus forming a new word יהשוה Yeheshua, the Pentagrammaton, the symbol of a new being, the Adept or Tsaddik in whom the birth of Spirit has equilibrized the base and unredeemed elements of matter.”

“The letters יהוה YHVH of the Tetragrammaton are used to imply the whole gamut of the four elements. י Y as the creative function of the Archetypal Realm, is Fire the Chiah; the first ה H represents the Cup, the symbol of the passive character of the Creative World, and is Water the Neschamah; ו V is the Son, the active vice-regent of the Father, and is Air the Ruach; and the final H ה is the Nephesch; the passive receptive Earth, fructifying all things.”