They are absent from this MORTAL flesh body, which is what the text is referring to. Get me?
But I admit I could be wrong. As with all such things, the fat lady ain't sung yet, but I wish she'd hurry up.
I understand, but as I read it the Apostle is saying that while we are presently at home in the body we are away from the Lord, and so when away from the body we shall be present with the Lord. But that away from the body/present with the Lord is still looking forward to a completeness that is to come when Christ returns. Away from the body/present with the Lord isn't the final state, but a state of waiting until all is completed.
We look forward to that future dwelling, the resurrection of the body; but even now as we groan and suffer in this present mortal condition we can see it would be preferable to not suffer and be with the Lord apart from the body.
I think, taken on its own, one could read the passage in 2 Corinthians 5 to indicate the receiving of the resurrection body while apart from this one; but taken with the whole of the biblical material the Apostle is looking forward to resurrection while also speaking of an awayness from the body, an emigration from the body, away from our home and present with the Lord. A state of nakedness, as it were, but one of respite from the grief, sufferings, and trials of this mortal life. So that the time between bodily death and bodily resurrection is a time of rest, of respite, to be with the Lord in our waiting for what is to come.
The word Paul uses when he says "away" from the body is ἐκδημῆσαι (ekdomesai), out-of-dwelling. Our bodies are our home, we are ἐνδημοῦντες (endemountes) at home in our bodies, to be bodied is how we are supposed to be (God created us body-and-soul, united together); and so to be ekdomeo, out-from-our-home isn't how things should be (bodily death is a disruption of God's purposes for creation). But, nevertheless, to be ekdomeo from our bodies is preferable if we are endomeo with the Lord. That makes, because of the present mortality and problems of this sin-and-death soaked reality, apart from the body preferable even though God's intended purpose is for us to be enhoused bodily. Which God will do, when all things are made perfect and complete on the Last Day.
For, even now, we have our citizenship in heaven where Christ reigns, from where He will come and will exchange our present lowly bodies of death with a glorified body like His own (Philippians 3:21). This flesh will be raised up, this flesh though mortal, perishable, soaked with sin an death and dishonor will be transformed; it is presently soulish (psuchekos) but will be made Spiritual (pneumatikos); for the body will be quickened by the power of the Holy Spirit (Romans 8:11).
-CryptoLutheran