According to a legend, the idea of the dream catcher has been transferred to the indigenous American Indians through visions. The dream catcher is spun as the net of a spider in order to function as a filter. It separates evil thoughts and dreams such as external interference, hate and manipulation from the good. It only let pass what helps people following their dream without any obstacles. The dream catcher functions as a strong symbol of protection above a bed, hang up on a wall it attracts the energy of the Chi and levitating in a room it conducts and spreads the Chi.