Essential Facts About Soham and the Yogi
A mantra is any sound formula that by its own inherent vibration creates a change, either inner or outer. Soham is therefore a mantra–the supreme mantra. But the secret of its supremacy is the fact that it is also the Divine Name of both God, the Paramatman, and the individual Self, the Jivataman. This is indicated by the two oldest Upanishads–the Brihadaranyaka Upanishad the the Isha Upanishad.