SANKIRTANA.
Sankirtana is the two main types of preaching of the International Society for Krishna Consciousness (ISKCON)
Lord Chaitanya is (the founder of the Gaudiya Vaishnavism tradition) inspired His followers to go to the streets of Indian cities and villages dancing and chanting the Holy Names of Krishna, thus preaching Harinama-sankirtana (chanting the Holy Names of God).
The founder of ISKCON is A.Ch. Bhaktivedanta Swami Prabhupada translated more than 80 major volumes of Vedic works at the instruction of his spiritual master. He made sankirtana the basis of sankirtana - DISTRIBUTION OF SPIRITUAL LITERATURE.
ISKCON devotees are distributing these books all over the world so that people can get in touch with God Himself through reading spiritual books!
The basis of the philosophy of Krishna Consciousness is the following treatises: "Bhagavad-Gita," "Srimad-Bhagavatam," "Chaitanya-Charitamrita," and "Bhakti-rasamrita-sindhu." The sankirtana devotees, by distributing books, preach these teachings to the people.
However, a question may arise:
• Why should we study this literature, since there is plenty of other religious literature?
This knowledge is the king of knowledge, the innermost of mysteries. It is the purest knowledge and because it gives man a living experience of his own self, it is the perfect religion. Knowledge is eternal and its comprehension is joyful."
(Bhagavad-Gita, 9-2)
The devotees of sankirtana are extraordinarily merciful to the living entities and therefore very dear to Sri Krishna.
"One who reveals this supreme secret to My devotees will certainly attain the gift of pure devotional service and will return to Me at the end of life.
There is not and never will be a servant dearer to Me in this world than he."
(Bh.-Gita , 18-68, 69).