The Light Matrix Hologram is a pedestal shaped device that creates a huge, cascading light show which mesmerizes anyone who looks at it. It was found in the Goa'uld Pleasure Palace on P4X-347. The device takes advantage of the mind set after it has been affected by the radiation produced by the pedestal. This radiation acts as a drug and people become addicted to it. If they move too far away from the pedestal they start to feel the effects of withdrawal. If they do not return to palace, a chemical imbalance in their brains will cause them to become depressed, to the point of wanting to commit suicide. (SG1: "The Light")