San religion

They found that entoptic phenomena can occur through rhythmic dancing, music, sensory deprivation, hyperventilation, prolonged and intense concentration and migraines.

Shamans experiencing the second phase of trance would incorporate the natural world into their entoptic phenomena, visualizing honeycombs or other familiar shapes.

Subjects under laboratory conditions have found that they experience sliding down a rotating tunnel, entering caves or holes in the ground.

People in the third phase begin to lose their grip on reality and hallucinate monsters and animals of strong emotional content.

[12] There are also often images of therianthrophic entities which have both human and animal traits and are connected to the notion of trancing, but these represent only a fraction of all rock art representations.

[7] Most commonly portrayed are animals such as the eland, although grey rhebok and hartebeest are also in rock art in places such as Cederberg and Warm Bokkeveld.