In folklore traced back to medieval legend, a succubus (plural succubi) is a female demon or supernatural entity that appears in dreams, who takes the form of a human woman in order to seduce men, usually through sexual intercourse. The male counterpart is the incubus. Religious traditions hold that repeated intercourse with a succubus may result in the deterioration of health or even death.
Gurdjieff has prepared a group of dancers. The dancers created such a meditative energy, such a great wave of energy, that those who had come just to see the dance, suddenly forgot the dance completely. Something else was there by the side, a door opened through it.. (commentaries by osho)