Slain in the Spirit

Also known as Falling under the Spirit's Power, Falling Before the Lord, or Resting in the Spirit.

A religious phenomenon, generally in Pentecostal or Charismatic meetings in which a person loses motor control over their body, and falls to the floor.

This has variously been attributed to religious hysteria by mental health professionals and to a personal encounter with God by fellow believers. Its origins can be traced back to Methodist churches in the late 18th century.