The Spirits' Book
Book Two - The Spirit World
Chapter VII - Return to Physical Life
Union of Body and Soul – Abortion
344. When does the soul unite with the body?
“This union begins at conception but it is only completed at birth. From the moment of conception, the spirit assigned to inhabit a specific body joins that body by a fluid link, which will increasingly tighten up to the moment of birth. The cry produced by the infant announces that it has entered the number of the living and the servants of God.”