"So Humm" (sometimes written "Soham") shows up a lot in modern meditation content, often with no real explanation beyond "repeat this while you breathe." It deserves a bit more context, because the phrase is doing something quite specific.
Breath built into the words
"So Humm" translates roughly to "I am That" — "that" meaning the same universal consciousness the Upanishads describe as underlying everything. The phrase is built to match the sound of breathing itself: "So" rises naturally on the inhale, "Humm" falls on the exhale. You're not really adding anything artificial to the breath; you're just noticing what it already sounds like, in words.
Where it comes from
The idea traces back to Vedantic philosophy, particularly the teaching that the individual self (atman) and the universal self (brahman) are not separate. "So Humm" is a direct, compact statement of that non-duality — instead of arguing the philosophy, you simply repeat the conclusion until it has room to settle.
How to actually use it
Sit comfortably, with your spine reasonably upright. Let your breath slow down on its own — don't force it. As you inhale, silently note "So." As you exhale, silently note "Humm." That's the entire practice. There's no required number of repetitions; ten minutes is a common starting point, and many people find the mind quiets noticeably within the first few minutes once the rhythm takes hold.
Why pair it with music
A spoken mantra on its own can be hard to sustain — the mind wanders, and there's nothing to gently pull it back. A soft musical bed underneath the breath gives attention somewhere steady to return to, the same way a metronome helps a wandering sense of timing. That's the role music plays in a track like this one: not a melody to follow, but a quiet floor beneath the breath.
You can find the full meditation track, along with the rest of the catalogue, on the Soulful Music India channel.