The purpose here is to not reincarnate into a better life but to stop reincarnation indefinitely. Once you achieve enlightenment, you won't need to reincarnate and live in the afterlife in endless bliss. Quoting: Amilius
This is where there is a disagreement between "resurrection" and 'reincarnation'.
According to the doctrine of 'reincarnation', the world is essentially irredeemable
; hence, the only 'redemption' is to stop
the 'reincarnational process' altogether.
But, according to the Revelations of the monotheistic religions, it is this
world which, ultimately, will be redeemed
. That is, there is no escape from living future lives because, at some point, this world will be transformed into something completely different than it is right now.
This world was Created by the Creator to be inhabited
, as stated in the Book of Isaiah
, in which book is also the first reference to the revelation of the memories of previous lives (Chapter 26:19).