When I was small I had a fish tank, actually we had fish most of my life and my parents have fish now. But my point is that I used to sit for hours and watch the fish swim round and round in there little tank. The life of the fish consisted of swimming up the little water stream to play in the bubbles, eating fish poop and grime growing on the rocks in the bottom of the tank, and swimming lazily back and forth across the botom of the tank. For some reason this was not only mezmorizing, but extremley relaxing.