Time is called kala — past, present and future. What is now present, tomorrow will be past, and what is now future, tomorrow will be present. But this past, present and future are the past, present and future of the body. We do not belong to the category of the past, present and future. We belong to the category of eternity. Therefore one should be concerned with how to attain or how to be elevated to the platform of eternity. The developed consciousness of the human being should be utilized not in the animal propensities of eating, sleeping, mating and defending but in searching out the valuable path which will help him get that life of eternity. It is said that the sun is taking away our duration of life — every minute, every hour, every day — but if we engage ourselves in the topics of Uttama-sloka, the topics of the Lord, that time cannot be taken away. The time one devotes in a Krsna consciousness temple cannot be taken away. It is an asset — a plus, not a minus. The duration of life, so far as the body is concerned, may be taken; however one tries to keep it intact, no one can do it. But the spiritual education we receive in Krsna consciousness cannot be taken away by the sun. It becomes a solid asset.

Chanting Hare Krsna, Hare Krsna, Krsna Krsna, Hare Hare/ Hare Rama, Hare Rama, Rama Rama, Hare Hare is a very easy thing to do. Time spent chanting cannot be taken away like time pertaining to the body. Fifty years ago I was a young man, but that time has been taken and cannot be returned. The spiritual knowledge I received from my spiritual master, however, cannot be taken away, but will go with me. Even after I quit this body, it will go with me; and if it is perfect in this life, then it will take me to the eternal abode.

From Srila Prabhupada's "Easy Journey to Other Plants"