It is enjoined in the sastras that intelligent men in this age will take to the sankirtana movement, and by so doing they shall worship the Supreme Personality of Godhead Lord Caitanya, whose bodily complexion is golden and who is always accompanied by His confidential devotees to preach this Krsna consciousness movement all over the world. In its present condition, the world can only be saved by introducing this sankirtana, this Krsna consciousness movement.

Srila Prabhupada, SB 4.18.8, ppt.