Below we see humanity created in heaven before the creation of the world, substantiating my post earlier. The correct term I remember from the missionaries (I also spoke with a bishop about this at a temple consecration) is
spirit children. I had to push the bishop quite a bit to admit it, but he did, and we are on good terms today.
Book of Moses Chapter 3
For I, the Lord God,
created all things, of which I have spoken,
spiritually, before they were
naturally upon the face of the earth. For I, the Lord God, had not caused it to rain upon the face of the earth. And I, the Lord God, had
created all the children of men; and not yet a man to till the
ground; for in
heaven created I them