When Śrī Kṛṣṇa Caitanya Mahāprabhu was requested to explain the duty of a Vaiṣṇava, a Kṛṣṇa conscious person, He immediately said, asat-saṅga-tyāga-ei vaiṣṇava-ācāra (CC Madhya 22.87). The first business of a Vaiṣṇava is to give up the association of persons who are not devotees of Kṛṣṇa and who are too attached to material things—wife, children, bank balance and so on. Prahlāda Mahārāja also prays to the Personality of Godhead that he may avoid the association of nondevotees attached to the materialistic way of life. If he must be attached to someone, he prays to be attached only to a devotee.
A devotee is not interested in unnecessarily increasing the demands of the senses for gratification. Of course, as long as one is in this material world, one must have a material body, and it must be maintained for executing devotional service. The body can be maintained very easily by eating kṛṣṇa-prasāda. As Kṛṣṇa says in Bhagavad-gītā (BG 9.26):
- patraṁ puṣpaṁ phalaṁ toyaṁ
- yo me bhaktyā prayacchati
- tad ahaṁ bhakty-upahṛtam
- aśnāmi prayatātmanaḥ
"If one offers Me with love and devotion a leaf, a flower, fruit or water, I will accept it." Why should the menu be unnecessarily increased for the satisfaction of the tongue? Devotees should eat as simply as possible. Otherwise, attachment for material things will gradually increase, and the senses, being very strong, will soon require more and more material enjoyment. Then the real business of life—to advance in Kṛṣṇa consciousness—will stop.