Is energy work evil? Reiki, Chakra, Acupressure and all of the above!?

I ask such a question only because I am a Massage therapist in training and every where I look for information on this they have it categorized with witchcraft! I feel it is evil and don't want anything to do with it no matter what kind of answer i get but i just want to know a little more about it only because I have to learn it in school!