(Prabhupada's lecture - Śrīmad-Bhāgavatam 2.2.5 - Los Angeles, December 2, 1968)
So there is no problem for executing devotional service to the Lord. And that is the highest perfection of all religious principles. But we have to practice. And that is not possible in this age. This age is called Kali. It is very difficult age. People are not very much interested to the most important problem of life. They are alpāyuṣa. Prāyeṇālpāyuṣaḥ sabhya kalāv asmin yuge janāḥ. People are short-living and manda. Manda means very slow for ultimate goal of life. The ultimate goal of life is to search out or is to reestablish your lost relationship with God. That is the mission of human life. Otherwise what is the difference between animal life and human life?
The animal life, they are also busy for eating, sleeping, mating and defending. So if we human beings, we are also similarly busy, then what is the difference? So this sort of civilization, simply making nice arrangement for eating and sleeping and mating and defending, that is not practically human civilization. The human civilization is meant for searching out God. Na te viduḥ. They do not know, unfortunately. They have forgotten. But by good association, they can remember. Therefore this meeting of Kṛṣṇa Consciousness Society's meeting is just to give people chance to associate with the Society and invoke their lost relationship with God. That is the missionary activities of this Society.