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Is a Hindu mantra, meaning "I am He/That" in Sanskrit.

In Vedic philosophy it means identifying oneself with the universe or ultimate reality.

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 myself am the Swan", where the swan symbolizes the Atman.

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