One verse

Srimad Bhagavatam 6.1.8

6.1.8

तस्मात्पुरैवाश्विह पापनिष्कृतौ यतेत मृत्योरविपद्यतात्मना । दोषस्य द‍ृष्ट्वा गुरुलाघवं यथा भिषक् चिकित्सेत रुजां निदानवित् ॥ ८ ॥

tasmat puraivasv iha papa-niskrtau yateta mrtyor avipadyatatmana dosasya drstva guru-laghavam yatha bhisak cikitseta rujam nidanavit

tasmat
therefore
pura
before
eva
indeed
asu
very quickly
iha
in this life
papa-niskrtau
to become free from the reaction of sinful activities
yateta
one should endeavor
mrtyoh
death
avipadyata
not troubled by disease and old age
atmana
with a body
dosasya
of the sinful activities
drstva
estimating
guru-laghavam
the heaviness or lightness
yatha
just like
bhisak
a physician
cikitseta
would treat
rujam
of disease
nidana-vit
one who is expert in diagnosis

Therefore, before one’s next death comes, as long as one’s body is strong enough, one should quickly adopt the process of atonement according to sastra; otherwise one’s time will be lost, and the reactions of his sins will increase. As an expert physician diagnoses and treats a disease according to its gravity, one should undergo atonement according to the severity of one’s sins.