Rather than grasping, channeling, or otherwise manipulating energy, Reiki is a method that allows us to invite (招) happiness/ good fortune / many blessings (福). This happiness, these many blessings are also the medicine for many illnesses. Worded another way, inviting this peace of mind is a method (Ryoho 療法) of dealing with many stresses and overall dis-ease.
Beautiful beautiful article from Andrew ANDERS