Saint Teresa writes about what she terms "the trance of union": "As to the body, if the rapture comes on when it is standing or kneeling, it remains so." If, when starting the meditation period, you are suddenly transfixed with the stillness or if it occurs during non-meditation times, remain in the place and attitude as you are. Do not move--or you break the spell. It is then irrecoverable. Never resist this "possession." Obviously this is possible only if alone.
-- Notebooks Category 23: Advanced Contemplation > Chapter 7: Contemplative Stillness > # 81