yā vai lasac-chrī-tulasī-vimiśra-
punāti lokān ubhayatra seśān
kas tāṁ na seveta mariṣyamāṇaḥ
River Ganga absorbs into herself Tulasi leaves (basil), sandal paste and the dust of the lotus feet of Lord Krishna. She carries them along with her as She flows. Due to this, Ganga becomes even more auspicious so much so that she grants internal and external purity to every being, including the guardian deities of the world (loka pālaka). Hence Ganga should be worshipped at the time of one’s death.
prāyeṇa tīrthābhigamāpadeśaiḥ svayaṁ hi tīrthāni punanti santaḥ
Great Maharishis, in the pretext of visiting holy pilgrim centres, actually go there to grant purity to the pilgrim centres themselves!
from Srimad Bhagavatam – Day 62(Translations of Pujya Sri Ganapathy Sachchidananda Swamiji’s daily explanation of Srimad Bhagavatam on ETV from December 2015 onwards are compiled by Parimala Eshwarla)