The whole point is that one should begin Krsna consciousness immediately. Suppose one thinks, "After finishing my sporting life, when I am old and there is nothing else to do, then I shall go to the Krsna consciousness Society and hear something." Certainly at that time one can take up spiritual life, but what is the assurance that one will live to an old age? One may die at any time; so postponing one's spiritual life is very risky. Therefore one should take the opportunity now to advance in Krsna consciousness. That is the purpose of this Society: to give everyone a chance to begin Krsna consciousness at any stage of life. And by the process of chanting Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare/ Hare Rama, Hare Rama, Rama Rama, Hare Hare, advancement is very quick. There is an immediate result.

From: The Transcendental Teachings of Prahlada Maharaja by Srila Prabhupada