One verse

Srimad Bhagavatam 3.25.33

3.25.33

जरयत्याशु या कोशं निगीर्णमनलो यथा ॥ ३३ ॥

jarayaty asu ya kosam nigirnam analo yatha

jarayati
dissolves
asu
quickly
ya
which
kosam
the subtle body
nigirnam
things eaten
analah
fire
yatha
as.

Bhakti, devotional service, dissolves the subtle body of the living entity without separate effort, just as fire in the stomach digests all that we eat.