The process of Krsna consciousness should be very vigorously propagated all over the world. Simply by seeing the Deity or simply by joining in chanting of the Hare Krsna mantra, people will derive tremendous benefit. If one performs kirtana, chanting, one will be able to think of Krsna. One may think, "I danced for two hours and chanted Hare Krsna. What is the meaning of this?" This is smarana, thinking of Krsna. One may even think, "I foolishly chanted 'Krsna, Krsna' for two hours." But that also is smarana.
Because the Krsna consciousness movement is spreading, people are purchasing our books about Krsna. Because they are curious they say, "What is this Krsna? Let us see the book." Then they immediately see a picture of Radha and Krsna, and if they open the book they will see more. In the book there are many prayers glorifying Krsna. So some will hear about Krsna, and others will read, and if they are fortunate enough they will become Krsna conscious and engage in the worship of the Deity.
These methods of devotional service — hearing, chanting, remembering Krsna, and so on — are so perfect that as soon as one takes to them (either all of them, some of them, or even one of them) one becomes purified.
Srila Prabhupada; TQK 18, Liberation from Ignorance and Suffering