U stands for union with God.
M stands for the manifestation of God, in us, with us, and through us.
AUM says that man errs when he says that he lives because he breathes. He lives because in his breath there is the power that is God himself.
O man, AUM can fulfil all your desires. AUM can free you from all your desires. Only one boon is granted; choose either of the two. If your worldly desires are infinite, then rest assured that God's wealth is more than infinite. So you can safely continue asking Him for things mundane. Again, if you want inner and outer freedom, God, being absolute Freedom, can fulfil your highest aspiration. So you can safely go on aspiring for things Divine.
AUM existed. Nothing else. AUM exists. Nothing else. AUM will exist. Nothing else. Now what is AUM? It is the Mother of all Indian mantras. What is a mantra? It is power in the guise of a sound. The sound of AUM is unique. Generally, when two things are struck together, we hear a sound. But this sound needs no striking. It is Anahata (unstruck). It is a soundless sound. A yogi or a spiritual figure hears it in the inmost recesses of his heart. When you hear it, you can be certain that you are far advanced in the spiritual life. Your God-realisation will no longer remain a mere cry in the wilderness. The day of your Self-Realisation is fast approaching.
The difference between man and God, according to AUM, is very simple. Man needs God more than he wants Him. God wants man more than He needs him. As a matter of fact, both man and God need each other. Man needs God to fulfil his desires and his earth-bound life. God needs man to transform His Vision into Reality, His manifestation into perfect Perfection.
There are seven higher worlds and seven lower worlds. The higher worlds are: Bhur, Bhuvar, Swar, Jana, Mahar, Tapas and Satya. One of the Upanishads names seven higher regions. These are: Agniloka, Vayuloka, Varunaloka, Adityaloka, Indraloka, Prajapatiloka and Brahmaloka. Certain spiritual figures are of the opinion that the first-mentioned group of worlds corresponds to the second. Others, equally qualified, strongly object to this belief. Strangely enough, all, without exception, agree that the world Satya and Brahmaloka are one and the same.
Now the seven lower worlds are: Atala, Vitala, Sutala, Rasatala, Talatala, Mahatala and Patala.
AUM and AUM alone has a free access to all these higher and lower worlds.From:Sri Chinmoy,The significance of Aum, AUM Centre, Santurce, Puerto Rico, 1967
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