One verse

Srimad Bhagavatam 6.1.13-14

6.1.13-14

तपसा ब्रह्मचर्येण शमेन च दमेन च । त्यागेन सत्यशौचाभ्यां यमेन नियमेन वा ॥ १३ ॥ देहवाग्बुद्धिजं धीरा धर्मज्ञा: श्रद्धयान्विता: । क्षिपन्त्यघं महदपि वेणुगुल्ममिवानल: ॥ १४ ॥

tapasa brahmacaryena samena ca damena ca tyagena satya-saucabhyam yamena niyamena va deha-vag-buddhijam dhira dharmajnah sraddhayanvitah ksipanty agham mahad api venu-gulmam ivanalah

tapasa
by austerity or voluntary rejection of material enjoyment
brahmacaryena
by celibacy (the first austerity)
samena
by controlling the mind
ca
and
damena
by fully controlling the senses
ca
also
tyagena
by voluntarily giving charity to good causes
satya
by truthfulness
saucabhyam
and by following regulative principles to keep oneself internally and externally clean
yamena
by avoiding cursing and violence
niyamena
by regularly chanting the holy name of the Lord
va
and
deha-vak-buddhi-jam
performed by the body, words and intelligence
dhirah
those who are sober
dharma-jnah
fully imbued with knowledge of religious principles
sraddhaya anvitah
endowed with faith
ksipanti
destroy
agham
all kinds of sinful activities
mahat api
although very great and abominable
venu-gulmam
the dried creepers beneath a bamboo tree
iva
like
analah
fire

To concentrate the mind, one must observe a life of celibacy and not fall down. One must undergo the austerity of voluntarily giving up sense enjoyment. One must then control the mind and senses, give charity, be truthful, clean and nonviolent, follow the regulative principles and regularly chant the holy name of the Lord. Thus a sober and faithful person who knows the religious principles is temporarily purified of all sins performed with his body, words and mind. These sins are like the dried leaves of creepers beneath a bamboo tree, which may be burned by fire although their roots remain to grow again at the first opportunity.