This form of healing was developed in Japan over a hundred years ago by a man called Mikao Usui. The term Reiki is a Japanese word translating as ‘universal life energy’. To become a practitioner, one must receive the attunement and initiation through the lineage passed down from Usui himself. Upon completion of their attunement, each Reiki healer will be given their lineage, much like a family tree, that provides the names of their ‘Reiki ancestors’.