Note 13 to ΚΕΦΑΛΗ ΚΓ Skidoo in Liber CCCXXXIII, The Book of Lies by Aleister Crowley.

“T, manhood, the sign of the cross or phallus. UT, the Holy Guardian Angel; UT, the first syllable of Udgita, see the Upanishads. O, Nothing or Nuit.” [via]