The Revelation of Jesus Christ : A-U-M : Lesson 17-Lesson 18-Lesson 19

"In my end is my beginning."

"I am Alpha and Omega, the beginning and the end, the first and the last."

From an Esoteric Lesson given by Rudolf Steiner in Berlin on December 21, 1904:

AUM
A: "I acknowledge myself" or "I am"   [Lesson 17]
U: "I acknowledge mankind" or "Man is"   [Lesson 18] 
M: "I acknowledge the Godhead" or "God is" or "I acknowledge life"   [Lesson 19]




Shanti  [the Holy Spirit : Manas]
Shanti  [the Son : Buddhi]
Shanti  [the Father : Atman]


Source: http://martyrion.blogspot.com/2011/10/aum-do-good-for-all-mankind.html