When we talk about "Energy" in alternative therapies, people always think about some kind of magical flow. At the contrary with the developing of quantic physics, a change in reality perception has been done.

Everything is energy, subatomic variations and vibrations that make all we can perceive possible. But for human being, as we are highly specialized comunication animals, "Energy" just means "Information".

Although we live in our "rational state" of consciousness we often forget that the most part of our thoughts processes are subconscious.  

Reiki, regressive therapy, shamanism, therapy with crystal. If they are part of a 360 psychological and medical threatment, they are just a way to work with our symbolic mind. 

So it's not about believing, it's about recognizing the multiple layers reality of our

nature to reach a global view of human being.