The wild tigers, elephants, bear and deer all together accompanied the Lord, and the Lord accompanied them in sankirtana. By this He proved that by the propagation of the sankirtana movement (congregational chanting and glorifying of the name of the Lord) even the wild animals can live in peace and friendship, and what to speak of men who are supposed to be civilized.
Srimad Bhagavatam Introduction.
Lord Caitanya declares a war against Kali Yuga with "the bow" "the six Goswamis", by pulling back "the string" "Bhakti Vinod Thakur" making a thunderous sound, puts "the long strong arrow" "Bhakti Siddhanta Saraswati Thakur", having "the direction giving feather back of the arrow" "Sri Gaur Kishore Das Babaji Maharaj" and "the sharp penetrating arrow front" "Srila A.C.Bhakti Vedanta Swami Prabhupada".
To manage a sankirtana party nicely is more precious than all other activities. That is the verdict of Bhagavad-gita and the mission of Lord Sri Chaitanya Mahaprabhu.
Letter to Tamala Krsna – Bombay 13 November, 1975.
Chaitanya Mahaprabhu is the incarnation of the Supreme Personality of Godhead in this age of Kali, and He will be easily satisfied if the sankirtana movement is spread vigorously all over the world.
Purport Srimad Bhagavatam on 8.14.6
Lord Chaitanya has given special stress to chanting of these holy names of the Lord as the basic principle of spiritual advancement.
Purport on Srimad Bhagavatam 3.29.18
The entire Krishna consciousness movement is based on the principles of the sankirtana movement inaugurated by Sri Chaitanya Mahaprabhu. Therefore one who tries to understand the Supreme Personality of Godhead through the medium of the sankirtana movement knows everything perfectly.
Purport on Srimad bhagavatam 7.9.38