AUM TAT SAT is a mantra spoken of in the Bhagavad Gita and is used at the beginning of various undertakings and activities. AUM is the word of power. Pronounced correctly, this word, which is an expression of divine power, brings great harmony to the body and mind. "Tat" ("That") recalls high motives, and thus helps to discard everything that is unworthy of them. “Sat” (“creation”, “being”) recalls the Good that permeates everything that exists, and thus sanctifies and ennobles what is done, and gives the action the character of a joyful acceptance of the fullness of the presence of the Almighty in all objects and phenomena.