Physical Birth...

Following the review of past failures and accomplishments, and pre-planning for the next incarnation, preparation begins for the complex process of physical birth, as the soul begins to form a spiritual contact with the aura of Earth and in particular with its new parents.
The soul which has decided to incarnate has already asked and been accepted by the souls of its intended parents. Before the time of conception, because it knows when it is to be conceived, it draws close through its astral body to the aura of the Earth, and in particular the auras of its parents. It awaits in its astral form its moment of conception. It watches its intended parents as they live their lives on the Physical Plane.
At the moment of conception, the three souls unite on the Astral Plane. It is rather like a reunion, a time of celebration. But there are very few persons consciously aware of this.
A very small fraction of the soul that is to be born thereafter resides within the seed of that union. During the following months, as the body of the unborn child grows within the mother's womb, so that small fraction of the soul begins to increase until, at the moment of birth, one seventh of the soul is in the child's body.