We should push Krsna consciousness as disinfecting agent. They're all infected, the whole world. So by chanting you disinfect.
Therefore chanting is so important. Philosophy later on. First of all, ceto-darpana-marjanam [Cc. Antya 20.12], cleansing the heart.
By hearing this chanting their heart will be cleansed gradually. Then they will understand the real position.
So we have to do this chanting, not sit down in a solitary place, chanting himself. No, not like that. You are to vibrate the sound for the benefit of others. So that their heart may be cleansed and they can understand.
And if I sit down in a solitary place, for my benefit, that may be his benefit, but it is not very high class engagement. He must sacrifice for
others. Pararthe prag utsri, utsri[?]. That is the Canakya Pandita's moral instruction, that "Everyone should sacrifice for the Supreme."
Caitanya Mahaprabhu is God Himself. He comes down to preach, to become sannyasi, and to take so much trouble all over India and everywhere, and giving instruction and sending men, "Go, go, go, go." What? Why you…? He's perfect. Why He's coming? He doesn't require. No. For the benefit of others, we must follow the footsteps of Caitanya Mahaprabhu.
From Srila Prabhupada's Morning Walk — December 5, 1973, Los Angeles