The Spirits' Book
Book Two - The Spirit World
Chapter VIII - Emancipation of the Soul
442. If people experiencing ecstatic trance were left to their own devices, could their souls definitely leave their bodies?
“Yes, such individuals might actually die and it is therefore necessary to call them back by everything that may attach them to the lower life. Others must show them that if they break the bonds that keep them on Earth, they effectively block a later possibility of staying in a world in which they perceive that they would be happy.”