Srila Prabhupada: By chanting Hare Krishna one fixes his mind always on the Supreme Lord. One example often given is that of the caterpillar that thinks of becoming a butterfly and so is transformed into a butterfly in the same life. Similarly, if we constantly think of Krishna, it is certain that at the end of our lives we shall have the same bodily constitution as Krishna. (Bhagavad-gita, 8.8 Purport)
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