I.A.O. is the supreme mantra of Sexual Magic. I.A.O. is the name of the serpent. Blessed be the I.A.O.

I.A.O. must be chanted during the practices of the laboratory (Sexual Alchemy); thus, this is how the serpent moves about and is joyful. Chant I.A.O. seven times while in the Laboratorium Oratorium.

The mantra I.N.R.I. has an absolute power over the fire; chant this mantra also in the Laboratorium Oratorium in order to carry the fire to each one of your seven chakras. Chant I.N.R.I as follows:

INRI ENRE ONRO UNRU ANRA; these mantras must be chanted by syllabifying them as follows:
•Iiinnn Rrriii (clairvoyance)
•Eeennn Rrreee (clairaudience)
•Ooonnn Rrrooo (heart – intuition)
•Uuunnn Rrruuu (telepathy –solar plexus)
•Aaannn Rrraaa (pulmonary chakras – memory of past lives)

The great Hierophant Jesus-Christ chanted these mantras in the Laboratorium Oratorium of the pyramid of Kephren.

-Samael Aun Weor, Arcanum 7: Alchemy and Kabbalah in the Tarot