You made a wonderful meal and all the guests enjoyed the scrumtuous meal. They were licking their fingers in delight, but couldn't finish everything because the table was overflowing with delicacies.
But what to do with the leftovers?
The same question comes up after Sukkos. We enjoyed the holiday so rich in symbols, but what do I do with the leftover schach and lulav set?
Items that are used for a mitzva have varying levels of Kedusha-sactity: a worn out Sefer Torah is buried, used tzitzis strings are used as bookmarks, beaten bravos are saved and used to make the fire for baling matztza, and an esrog - is used to make eingemachts jam.
Each year I gather a few esrogim after Sukkos hoping to try my hand at a sweet creation. Wo knows, maybe I'll make it this year.
If we have to treat inatimate objects this way, how much more so, our bodies, the repository of our holy soul. After the spiritual portion leaves our physical portion, we still give respect to the holy vessel that housed our neshama, and return it to the ground from which it came.
Rabbi Eliezer Langer