Gargamuni: "In the Bhagavad-gītā the Lord directly states that He accepts the vegetable foodstuffs from the hands of a pure devotee. Therefore, a human being should not only become a strict vegetarian, but he should also become a devotee of the Lord and offer to the Lord all his food, and only then partake of the prasādam, or mercy of God. Such a devotee can properly discharge the duty of human life. Those who do not do so are eating only sins and thus will be subjected to the different types of distress which are the result of the various sins."
Prabhupāda: Yes. This is stated in the Bhagavad-gītā, Fourth Chapter: yajña-śiṣṭāśinaḥ santo mucyante sarva-kilbiṣaiḥ (BG 3.13). Our this conditioned life is so situated that in every step we are committing some sins. In every step, without knowing, ignorance, because we, we are born ignorant. Therefore Bhāgavata says, parābhavas tāvad abhodha-jātaḥ (SB 5.5.5). Abodha-jātaḥ. Abodha-jāta means every living entity is born fools. Therefore there are so many educational institution. If the man born . . . may be in very high family or in high nation, but he is a fool. Otherwise, what is the necessity of so many educational institution? It is a fact.
So that foolishness, when it is come to light . . . that is stated in the Śrīmad-Bhāgavatam: parābhavas tāvad abodha-jāto yāvan na jijñāsata ātma-tattvam (SB 5.5.5). This foolishness will continue so long as he does not come to the platform of understanding self-realization. Otherwise, all these universities and institution for imparting knowledge, their continuation of that same ignorance and foolishness. Unless one comes to the point of understanding, "What I am? What is God? What is this world? What is my relationship . . .?" Unless these questions come into one's heart, and there is no proper answer, he continues to be foolish like animal, and he is subjected to different species of life, transmigration from one body to another. This is ignorance.
So this is a very risky civilization. I may feel very comfortable that, "I am a spiritual master," or you may think very comfortable, "I am born of a very rich nation, America," but this status of my life is temporary. I will have to change. I'll have to change. So if I do not change for the better, then my life is very risky. Suppose a healthy man, if he is in the society of contamination, is it not his life is very risky? He may be contaminated and infected by disease any moment.
So this ignorance should be dissipated. Here it is said that such a devotee can properly discharge his duty of human life. Those who do not do so are eating only sins. Bhuñjate te tv aghaṁ pāpaṁ ye pacanty ātma-kāraṇāt (BG 3.13). Anyone who is cooking for himself . . . the difference between, of cooking here in this temple and in ordinary house is that in ordinary house they're cooking sins. The cooking, it appears that the same, "These people are also cooking," but this cooking and that cooking is different. Here there is no sin, because it is being cooked for Kṛṣṇa. Yajñārthe. Yajñārthe karmaṇo 'nyatra (BG 3.9).