Relaxation by color and chakras (chakra means wheel or vortex, in Sanskrit).

According to Hinduism, chakras are energy centers located within the human body, swirling invisible and immeasurable, that vibrate at various frequencies, most of which fall within spectrum visible to humans (430 to 740 THz), so each chakra is associated with a color. Through the use of colors, the therapist tries to tune in each chakra, to revitalize it and produce relaxation.