Advaita Prabhu asserted that by offering the first dish to Haridasa Thakura, he was getting the result of feeding one hundred thousand brahmanas. The conclusion is that if one can feed a brahmana or Vaisnava, it is better than performing hundreds of thousands of sacrifices. (Srimad Bhagavatam 3.17.8/purport)
Benefit of Feeding a Vaisnava