Harinamas of western Iskcon devotees in the city of Mumbai (video)
Srila Prabhupada: Worship of the Lord, whose name is like the sun, for just as a slight appearance of the sun dissipates the darkness of night, so a slight appearance of the holy name of Krishna can drive away all the darkness of ignorance that arises in the heart due to greatly sinful activities performed in previous lives. (Sri-Caitanya-caritamrta, Antya-lila, 3.62)
Watch it here: https://goo.gl/czO0lI