Sound made visible. You're looking at a vibrating plate — the same physics as sand dancing on a drum skin. Your body tunes the pattern in real time.
The two signals combine into coherence — your heart calm and your body still, both at once. The more they agree, the more the plate stops fighting itself and locks into clean symmetry. When you're scattered it churns asymmetric noise.
Hold coherence long enough and it locks — the figure gilds, a gold halo breathes around it, and a ring sweeps outward the instant you cross the threshold. That's the deep end.
The whole screen is a performance surface. Press — a pentatonic note rings out and the active effect kicks in. Hold and drag to sculpt the effect in two dimensions. Quick tap for a one-shot transform burst. Lift to return to dry. Touch height picks the note; left/right pans it. The calmer you are, the purer the tone.
The clock button (top-right, next to this panel) sets a countdown. When it reaches zero you get a snapshot of your peak coherence, lowest heart rate, and longest still streak.
Nothing to do but be here. Cool and restless when activated — bright teal as you settle — gold when you lock in.
This is how deep you settled — proof it's working.