What is Reiki?

The word Reiki is made of two Japanese words - Rei which means "God's Wisdom or the Higher Power or Universal power" and Ki which is "life force energy". So Reiki is actually "spiritually guided life force energy/ Universal life force energy"

Reiki is a divinely guided energy that flows once initiated from the cosmos to the crown chakra of the reiki practitioner then through their palm chakra. Reiki energy can be felt as it flows. The practitioner is a mere channel to the reiki energy, gets healed and energized during the process of reiki treatment or therapy.
Reiki has innate intelligence to know and heal. Reiki is a divinely guided healing energy, so it knows how and what to heal.

What Reiki is not?

Reiki is spiritual in nature, it is not a religion. It has no dogma, and there is nothing you must believe in order to learn and use Reiki. In fact, Reiki is not dependent on belief at all and will work whether you believe in it or not.