From “In woods of God Realization” Granth –
The Sacred Syllable OM
(Lecture delivered at the Hermetic, Brotherhood Hall, San Francisco, on December 22, 1902)
My Alter Egos, My Other Selves,
Some people want to materialize thought instead of realizing all matter to be mere thought. They regard the material plane to be real as compared with the Astral world or the world of thought. According to Vedanta, the material as well as the Astral worlds are unreal. You must rise above both because rest, true peace, happiness can be had only when the reality, the hard cash behind the scenes, is realized.
In AUM, A (ah) is sometimes called a Matra or form, U is often called a Matra or form, M is called a Matra or form; but OM does not stop at Matra or form, it stands for the reality, the hard cash which runs through, which underlies all these Matras. People say ― We want life, we don’t want mere ideas. O, what is Life? Is it the life of the dream-state or the deep sleep state or is it the life of the wakeful state that you want? All this is only apparent. The reality, the true life is your Self. There are stern laws which will not allow you enjoyment of pleasure forever through the senses. Is it possible for you to sell yourself to the senses, to the Sense-plane and be happy? No, it is impossible. There are most unrelenting, unrestrainable laws which cannot allow you to be happy in sensual pleasure.
The Atman is the real life, the hard cash. Realize that and these material pleasures will begin to seek you. Just as the moth comes to the burning flame, just as the river flows to the ocean, just as the small official pays his respects to a great Emperor, just so will pleasures come to you when you have perfectly known and felt your true Self, your divine majesty, the real glorious Atman. This Atman is represented by OM.
It has been shown how out of A-U-M, these three Matras, the Hindus, especially the Vedas, give you a clue to the underlying reality that you are. OM means the underlying Reality behind the scenes, the eternal Truth, the indestructible Self that you are. Thus when you sing this sacred mantram OM, you will have to throw your intellect and your body into your true Self, make these melt into the real Atman.
Realize it and sing in the language of feeling, sing it with your acts, sing it through every pore of your body. Let it course through your veins, let it pulsate in your bosom, let every hair on your body and every drop of your blood tingle with the truth that You are the Light of lights, the Sun of suns, the Ruler of the universe, the Lord of lords, the true Self. The sun and stars are your handiwork and the heavens and earth your workmanship. Everything declares your glory, and all Nature pays you homage.