In Hinduism, nyasa is a Tantric ritual that involves a series of touches in specific locations on the body. This is done by a “seer,” or rishi, who chants a specific mantra to “place” it on a body part. It is thought that this ritual imparts the presence of a deity in the body, or makes the body of the individual more divine. In Sanksrit, nyasa means “placing” or “touching.”
In Tantric yoga or meditation, practitioners may lay hands on themselves or mentally “place” a mantra in specific locations on the body.