This guy I went to school with showed me how to make a chi ball when I was 13. I never did any preparation for it, but after a few trys I felt a sensation of pressure. Since then I've been messing around with bringing sensation to my hands. When the guy showed me the ball thing he told me to wave my hand between his two. I felt a prickly feeling in my fingers. Since then I've replecated the effect for a few friends, and they felt it to. So yea I did that posture along with the visualization and the hand placement. It's preaty damn invigorating. Is that a good way to exercise building up and increasing my energy? Alright what I mean is, can I increase the energy I feel?
Does it come from me or do I draw it in from around me? Like that air might be the fuel for the power. Also, are there any other things I can do with chi other than heal myself?