An interesting discussion came up below about reincarnation vs. heaven. My understanding is that the Second Council of Constantinople (553), at which several theological opinions held by the "Origenists" were condemned as heresy were removed from scriptures, one of which is the "abominable doctrine of the transmigration of souls." Transmigration is the technical term for reincarnation (metempsychosis in Greek).

NOTE: I have to do more research on this claim.

And while the Bible says we have one life, Hebrews 9:27

Meanwhile Malachi 4:5 and Matthew 17:10–13 imply t
that Elijah was reincarnated as John the Baptist

My question is, is reincarnation really anti-christian in what it does (i.e. acts as a teaching moment or a balance against sins).

Just pondering