Simple reminder, from the Heart.

Text 54:

bhasmibhutAni tAnyeva
vaiSNavAliMganena ca
tRNAni zuSkakASthAni
dahaMti pAvako yathA

"Just as dry grass is burnt by fire, by the embrace of Vaisnavas all sins are burnt."

Text 56:

madbhaktAnAM zarIreSu
santi puteSu saMtatam
madbhaktapAdarajasA
sadyaH putA vasundharA

"In the body of My devotees remains eternally [the purifier]. Mother Earth becomes pure by the dust of the feet of My devotees."

Text 57:

sadyaH putAni tIrthAni
sadyaH putaM jagat tathA
man-maMtropAsakA viprA
ye maducchiSRbhojinaH

"It will be the same in the case of pilgrimage sites and the whole world. Those intelligent worshipers of My mantra who partake of My remnants will purify everything."

Text 59:

kaler daza-sahasrANi
madbhaktAH saMti bhu-tale
ekavarNA bhaviSyaMti
madbhakteSu gateSu ca

"For 10,000 years of Kali such devotees of Mine will be present on earth. After the departure of My devotees there will be only one varna [outcaste]."

A dialogue between Krishna and Ganga found in the Brahma Vaivarta Purana describes that for the first 10,000 years of Kali Yuga, the ill effects of Kali Yuga will be reduced due to the presence of bhakti yogis and the ability to nullify sinful reactions, after which Earth will be devoid of devout religious people and be shackled by Kali Yuga.

Source : https://en.wikipedia.org/wiki/Kali_Yuga