This is the difference, bhakti and karma. Karma means to fulfill my desires, and bhakti means to fulfill Krsna's desires. That is the difference. Now you make your choice, whether you want to make your desires fulfilled or if you want to make Krsna's desire fulfilled. If you make your decision to make Krsna's desire fulfilled, then your life is successful. That is our Krsna conscious life. "Krsna wants it; I must do it. I will not do anything for me." That is Vrndavana. All the inhabitants of Vrndavana, they are trying to fulfill Krsna's desire. The cowherds boys, the calves, the cows, the trees, the flowers, the water, the gopis, the elderly inhabitants, Mother Yasoda, Nanda — they are all engaged in fulfilling Krsna's desire. That is Vrndavana. So you can turn this material world into Vrndavana, provided you agree to fulfill the desires of Krsna. That is Vrndavana. And if you want to fulfill your own desires, that is material. This is the difference between material and spiritual.

Srila Prabhupada — January 30, 1975, Honolulu