Just watch and get yourself hypnotised.
A little something I made up when I was bored. Some people might find it hurts their brain while others find it soothing. Maybe, after watching it a bit, concentrate in one colour and see the effect (I suggest white). Comment whether if you see ripples or feel like you're falling through it (if you know what I mean) or maybe something I haven't yet seen. Maybe you don't see anything? Music : Vexento