In the biblical days people would offer sacrifices on the altar to G-D for all different reasons but today we have no such Temple to make such an offering or do we? The Temple might be destroyed but everyday (G-D willing) we are given bounty to eat so why can’t we leave a symbolic amount to the one who has given us this and the ability to enjoy it. That is why before I take a bite of my food I put a small piece aside for G-D and leave the last morsel to G-D . Sometimes I’ll sacrifice an item of food I love because I want to make an offering for a transgression I’ve committed. This is my own way of showing that I appreciate what G-D has given me and although there is no altar to bring it to at least I have not forgotten the desire to show my gratitude or ask for forgiveness.