Purification
Just meditating on Gaura lila in the mind will purify us so much, because there is no question of committing offences.
Becoming Purified
How intensely we think of Krishna will determine how quickly we become purified.
Sankirtana Movement
The Sankirtana movement we have started offers the best process for becoming purified of all sinful reactions and coming immediately to the platform of spiritual life.
Srimad Bhagavatam 6.2.11
Effects of Congregational Chanting
By performing congregational chanting of the Hare Krishna mantra, one can destroy the sinful condition of material existence, purify the unclean heart and awaken all varieties of devotional service.
Chaitanya Caritamrta on Antya Lila 20.13
Getting Purified
We get purified when we take anxiety for Krishna.
Even If You Cannot Chant
So in this Kali-yuga, if you simply chant or even if you cannot chant – because that requires little fortune — if we simply hear, that will also help us. So these centers are meant for chanting and hearing about Krishna. Simply this process, chanting and hearing, will purify our existence.