What is hollow bone healing ?

Hollow Bone Healing is an indigenous approach to Healing. That means in a great part, that it is a spiritual healing. If you have difficulty connecting to the Spirit World, you probably won't be able to do the practice.

You have to purify and remove yourself from the healing work and become able to be a hollow bone, an empty vessel for the creator to work through.

If that seems strange or difficult for you, it might be best to pursue some other way. There seem to be many trainings where people claim to be able to teach you to "heal" somebody. I and my teachers don't understand that or even if it is possible; you will have to choose for yourself.