Can I Get a Reiki Treatment?

I occasionally get a massage. Recently, there was a change in massage therapists. The new therapist emphasized that she uses Reiki, which is concentrating an energy field to help in healing. I mentioned this to a friend who is very knowledgeable in Reiki, and she mentioned that Reiki is an independent, sentient entity with volition and intelligence. She also says that someone doing Reiki involves the spirit of the Reiki entity through specific chants and phrases. Now I am concerned that what I thought was just an energy healing technique is somehow tied up with sorcery, witchcraft, divination. Bottom line: is it okay to get massages that include Reiki energy healing?