A Reiki practitioner puts her hands on or just above your body and tries to transfer healing energy to it. This Japanese practice is used all over the world as a natural way to relieve pain and stress. But there's not much research on it.
There's no typical Reiki session. You sit in a chair or lie down on a treatment table with clothes on. The practitioner will place her hands lightly on or just above your head and torso. If you have an injury or scar on one of your arms or legs, she may touch that, too. You shouldn't feel any pressure or discomfort.
During a session, some people get very relaxed and even fall asleep. You may feel gentle pulsing where the practitioner places her hands. Or you may not notice anything.