One verse

Srimad Bhagavatam 8.24.48

8.24.48

यत्सेवयाग्नेरिव रुद्ररोदनं पुमान् विजह्यान्मलमात्मनस्तम: । भजेत वर्णं निजमेष सोऽव्ययो भूयात् स ईश: परमो गुरोर्गुरु: ॥ ४८ ॥

yat-sevayagner iva rudra-rodanam puman vijahyan malam atmanas tamah bhajeta varnam nijam esa so ’vyayo bhuyat sa isah paramo guror guruh

yat-sevaya
the Supreme Personality of Godhead, by serving whom
agneh
in touch with fire
iva
as it is
rudra-rodanam
a block of silver or gold becomes purified
puman
a person
vijahyat
can give up
malam
all the dirty things of material existence
atmanah
of one’s self
tamah
the mode of ignorance, by which one performs pious and impious activities
bhajeta
may revive
varnam
his original identity
nijam
one’s own
esah
such
sah
He
avyayah
inexhaustible
bhuyat
let Him become
sah
He
isah
the Supreme Personality of Godhead
paramah
the supreme
guroh guruh
the spiritual master of all other spiritual masters

One who wants to be free of material entanglement should take to the service of the Supreme Personality of Godhead and give up the contamination of ignorance, involving pious and impious activities. Thus one regains his original identity, just as a block of gold or silver sheds all dirt and becomes purified when treated with fire. May that inexhaustible Supreme Personality of Godhead become our spiritual master, for He is the original spiritual master of all other spiritual masters.