The ancient use of a drum (or drums) for spiritual or magickal purposes. This may include work to raise power, alter consciousness for shamanic work, or to give a beat for magickal rituals and rites. In modern festivals, drumming is superficially seen as merely keeping the beat for dancers, and for many people that’s all it is. However, for those who can see beneath the surface, the combination of dance and drumming has magickal and spiritual consequences.
One typical method of using the drums is simply keeping a steady beat for a long period of time. This can have the result of altering the state of mind. A modern version of this is called isochronic tones.