Doing tai chi is like walking in a dark forest. The forest is your body and the space around it. You have to feel your way more than rely on sight. Your awareness is your eyes, your sense of touch, all of your senses unite into a single entity. A feeling rises in your solar plexus and all of the gates. Even in the middle of a sunny day, your forest is dark, mysterious; but your curiosity leads you on into the thick of it. Every time you come out on the other side it is a new forest in some way.