People who believe in the afterlife try to accumulate good deeds.
For goodness' sake, please give me just one more chance.
I beg of you, please help me.
with utmost devotion; take great care of
once in a lifetime; extremely important (request)
Standard kanji spelling for both the Buddhist afterlife sense and the pleading interjection.
From 後 (after) and 生 (life), literally 'after-life'. The pleading sense derives from the Buddhist notion of staking one's afterlife on a request, as in the phrase 後生だから.