The Ajna Light is a device for helping the receiver get into a meditative state through brainwave entrainment using high power LED lights flickering at specific frequencies. The light sequences take you through a series of brainwave states to open and activate the pineal gland. This gland helps regulate circadian rhythms (the sleep cycle) by producing and modulating hormones, such as serotonin and melatonin. The Light has been found to be very effective helping with anxiety, stress and depression. There are no known side effects.