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Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
One should cease performing conventional religious practices and should be attracted to those which lead to salvation. One should eat very frugally and should always remain secluded so that he can achieve the highest perfection of life.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada:
It is recommended herein that religious practice for economic development or the satisfaction of sense desires should be avoided. Religious practices should be executed only to gain freedom from the clutches of material nature. It is stated in the beginning of Srimad-Bhagavatam that the topmost religious practice is that by which one can attain to the transcendental devotional service of the Lord, without reason or cause. Such religious practice is never hampered by any impediments, and by its performance one actually becomes satisfied. Here this is recommended as moksa-dharma, religious practice for salvation, or transcendence of the clutches of material contamination. Generally people execute religious practices for economic development or sense gratification, but that is not recommended for one who wants to advance in yoga.
The next important phrase is mita-medhyadanam, which means that one should eat very frugally. It is recommended in the Vedic literatures that a yogi eat only half what he desires according to his hunger. If one is so hungry that he could devour one pound of foodstuffs, then instead of eating one pound, he should consume only half a pound and supplement this with four ounces of water; one fourth of the stomach should be left empty for passage of air in the stomach. If one eats in this manner, he will avoid indigestion and disease. The yogi should eat in this way, as recommended in the Srimad-Bhagavatam and all other standard scriptures. The yogi should live in a secluded place, where his yoga practice will not be disturbed.