So Hum
सो ऽहम्
“I am That.” The natural sound of the breath — “So” as you inhale, “Hum” as you exhale.
How to practice
Sit comfortably and simply listen to your breathing. Silently hear “So” with each inhale and “Hum” with each exhale, for 5–10 minutes. When the mind runs, return to the sound without scolding it.
Best when anxiety feels like racing thoughts and shallow breathing.