FFH would probably be in a better position to tell you what he meant than any of the rest of us could, so you may just want to ask him. However, I can tell you that we have absolutely no doctrine whatsoever concerning God's marriage or sealing. Anything anyone might say on the subject is pure conjecture. (Some Latter-day Saints are more inclined to conjecture than others.
) We do believe that we have a Mother in Heaven and that she is our Father in Heaven's eternal companion. We know next to nothing about her. She is seldom, if ever, even alluded to in our worship services, although the hymn porkchop posted the words to is frequently sung (to a beautiful melody, I might add).
I wouldn't venture a guess as to how a spirit is created. That's something I suppose you'd need to be God to know. The Bible does say, though, that God is the "Father of spirits" and that we are "His offspring." I don't know how other Christians interpret those words. We interpret them to mean that He is the Father of our spirits and that we are His offspring. Birth is a physical process that takes place in mortality. Since it follows a pregnancy of nine months, during which time the baby's body grows from a single cell to a point at which it can survive outside the womb, and since a spirit has no physical substance (flesh and bones), there is no reason at all to assume that it is created through the sex act.
