Soham or Sohum (सो ऽहम् so'ham[1]) is a Hindu mantra, literally meaning "That (is) I" in Sanskrit, implying "I am that".[2][3]
In Vedic philosophy it means identifying Brahman with the universe or ultimate Brahman.[2]
The mantra is also inverted from so 'ham (the sandhi of saḥ + aham) to ham + sa. The combination of so 'haṃ haṃsaḥ has also been interpreted as "I am Swan", where the swan symbolizes the Atman.[4]