Reiki is a holistic healing practice that involves channeling universal life force energy through the hands of a practitioner to promote healing on physical, mental, emotional, and spiritual levels. It is based on the idea that an obstruction in the natural flow of energy through the body is the cause of illness, and that Reiki can help remove these blockages and restore balance. Learning Reiki involves a two-day seminar with a Reiki master to become attuned and activate the ability to channel Reiki energy. Research on Reiki suggests it provides benefits such as increased energy, stress relief, and support of the immune system.