Last chapter of the anomaly, I understood that once you enter the anomaly, there is no way out, so this is the entrance and also the pulsating heart. Press the keys to move QWEASD, or press the space bar for the default animation (which also starts audio composed of low tones and random notes, giving me the impression of a generative heartbeat), press Z to save as jpeg, press P to pause the animation.
You can find the draft on OpenProcessing, and soon I will upload the basic version on Shadertoy.
Kisses
Kenzo