Reiki is a Japanese holistic healing technique that aims to promote relaxation, reduce stress, and enhance overall well-being. It's based on the idea that a practitioner can channel energy into a recipient through touch, activating the natural healing processes of the body and restoring physical and emotional balance. The word "Reiki" combines two Japanese words: "rei," meaning universal, and "ki," which refers to life energy. This practice is often used as a complementary therapy to conventional medicine and is known for its calming and revitalizing effects.