Neither spiritual retreats, churches, mosques, temples, karma-yoga, jnana-yoga, dry empirical philosophy, nor imitation devotees can save humanity from the jaws of death. They are inadequate for purifying the consciousness because what they offer as spiritual succor is limited by their sectarian vision, a set of do's and don'ts, and a rigid approach that simply further entangle humanity in the material energy. What is needed are exemplary spiritual actions and the espousal of the genuine path of self-realization, but these have not been properly instituted. Just as Bhagiratha brought down the Ganga and liberated his forefathers, similarly, we must bring a deluge of love of Godhead that can extricate the conditioned souls from the clutches of gross materialism. At least for some time, we must create Satya-yuga, the age of reason and piety. We can easily accomplish this Herculean task simply by reintroducing Lord Caitanya's sankirtana movement of the congregational chanting of Lord Krsna's name and thus flooding the world with krsna-prema. All living entities — the human beings, who are afflicted by Kali-yuga, as well as sub-human beings — must be drowned in the floodwaters of krsna-prema.

(From "Renunciation Through Wisdom" by Srila Prabhupada)