Christian Physicalism?

Going back to the original post, my memory was jogged a little to recall the assertion that reincarnation was a tenet of Christian thought until certain passages were alleged to have been removed from the bible (Council of Nicaea in 325 and the Council of Constantinople in 553). However, this is hotly contested by Christian scholars though we might cynically add that they would say that, wouldn't they?

The link I inserted above mentions Origen being the likely source of this idea of Christian belief in reincarnation though again the article argues that this too is a mistaken understanding of Origen. So I did a bit of searching on what Origen actually thought of the soul and whether it was considered to be incarnate and spiritual or, as your original post suggests, entirely of the body and that resurrection is actual bodily resurrection - prompting, for me, horror movie images of cadavers clawing their way out of the grave. 

So Origen does seem to have concluded that the soul is disincarnate and spiritual as opposed to a kind of fluid in the body (at the time, it seems, there was a debate about whether the soul is the blood).

The chief accusations against Origen’s teaching are the following: making the Son inferior to the Father and thus being a precursor of Arianism, a 4th-century heresy that denied that the Father and the Son were of the same substance; spiritualizing away the resurrection of the body; denying hell, a morally enervating universalism; speculating about preexistent souls and world cycles; and dissolving redemptive history into timeless myth by using allegorical interpretation. None of these charges is altogether groundless. At the same time there is much reason to justify Jerome’s first judgment that Origen was the greatest teacher of the early church after the Apostles.