Board Thread:Questions and Answers/@comment-27807861-20160226234406/@comment-5553481-20160302081648

Listen to what this old man has to say, for the potato has spoken.  I'm speaking from my experience, and I take no responsibility for the difference in beliefs. 

You shouldn't use your own energy in practice, because that way you'll tire yourself out. "energy capacity" has got nothing to do with what you can do, and you can't really "waste" energy - for example, if you make a psi ball, and forget about it, it'll...hmm...dissipate, if I may say, into ambient energy over time.

And for using ambient energy in practice, it's easy, instead of willing/visualising your energy to move, just will/visualise the energy around you (i.e. in the air) to form a psi ball for example.