"Whatever is most desired by one within this material world, and whatever is most dear to oneself -- one should offer that very thing to Me. Such an offering qualifies one for eternal life."
One should offer his most dear possession to Lord Krsna, not that which is superfluous or unwanted. If one is most attached to his family, one should see that his family is engaged in Lord Krsna's service. If one is most attached to money, that should be given for propagating Krsna consciousness. And if one considers one's intelligence to be most valuable, he should preach Krsna consciousness with great logic and reason. If we offer our most valuable possessions to Lord Krsna, we will automatically become dear to the Lord and go back to Godhead.
"Whatever one finds pleasing or enjoyable he should immediately offer to the Supreme Lord, and even his wife, children, home and very life air he should offer at the lotus feet of the Supreme Personality of Godhead."
- Srimad Bhagavatam