I want to learn how to control energy. I want to learn PSI, but I dont know where to start.

Can PSI be dangerous? Or, can it be against my religion (I am catholic)?

I need an expert to answer my qustions.

EDIT: Also, I think I couldnt do it. The principal reason is that I had never seen anyone doing this (even on TV), so I dobout if its real, I mean, chronokinesis.... Controlling time, its kinda crazy thing.... Making balls from nothing, controlling water, fire, ect
I want to have some proves. I belive in LD, but its hard to belive some of the PSI abilities (I belive in the Aura one)