8:56 PM
@Joshua Yes, of those options, my view would be closest to Generationism.
@Joshua I should add that Swedenborg's views on this subject were heavily influenced by Aristotle, whose reign as the ultimate scientific authority in Western thought had not quite ended in Swedenborg's day. Aristotle held that the soul comes from the father and the body from the mother. And Swedenborg accepted that Aristotelian view, and wove it into his theology in a way that is somewhat tricky, but not impossible, to unweave.
Swedenborg also stated that the soul is the prior entity in the generation of a new human being, and that it directs the development of the body in its own image from within.
This, of course, was all before Mendel, DNA, and the whole modern science of meiosis, genetics, and so on. Swedenborg did not have access to that information when he formed his theory.
Swedenborg was quite knowledgeable about embryonic and fetal development. However, he did not have available to him the knowledge of DNA and other genetic material in the cell nuclei that we have today, so his theory had to fall back on the Aristotelian model. He does not seem to have drawn heavily on the various Christian theologians and the Traducianism vs. Creationism debate, though he was probably aware of it.
In light of today's knowledge of genetics, I think the "soul from the father, body from the mother" idea has to be abandoned. But that same contemporary knowledge of genetics offers the possibility of a modified version in which the soul comes from offshoots of both the father's and the mother's soul, which provide the spiritual "DNA" that builds the new human beings soul, and through corresponding physical genetic material, the physical body as well. That is my basic theory.
Having said all that, I don't think any of this is essential or even all that important for Christian belief and life. It's just a matter of "inquiring minds want to know."
Not being saddled with the dogma of original sin, the precise mechanics are not, in my view, all that critical.
None of this means that humans originate the soul, as goes the common objection to traducianism. Really, the only human contribution is arranging for the egg and the sperm to meet. Beyond that, we have very little influence or control. Even modern techniques of in vitro fertilization must take existing genetic material and combine it to bring about a process of fertilization. We can tinker with the method of fertilization, but we can't create human genomes, let alone human proto-souls.
Recombining elements of various genomes is not actually creating them. It's just rearranging them a bit. In character, it's not all that different from selecting two particularly healthy animals and mating them, or in human terms, engaging in eugenics through mating "superior" human beings.
No matter how we may tinker with the genetic material, the soul and life still comes from God via the spiritual realms.