Remember when you say ata chonantanu or bein kodesh lekol Sabbath is over and we are in the Motzei Sabbath Fast. And when one finishes saying Havdalah over the Kos shel bracha and drinks, the Motzei Sabbath fast is over!
So why instead of rushing to eat other food you should eat the shirayim and degs of dregs from Sabbath instead?
This is to say to yourselves that you do not chase after the world but we miss the time we spent with the Lord and even though you are now free to pursue other things the first thing we do is try to grab hold of the remnants of Sabbath instead, thereby baring witness that you are not of this world but belong in the Sabbath rest.
