Just sacrifice the fruit of the engagement. That is to be given to Kṛṣṇa. This is surrender. Just like a good boy surrenders to his father means whatever he earns, the money, at the end of month he puts in the hand of the father: "Oh, this is my month's earnings"; similarly, we have to sacrifice the fruits of our labor to Kṛṣṇa. This is the beginning of Kṛṣṇa consciousness.
- Lecture on SB 7.9.8 -- Montreal, July 2, 1968