I’ve also heard of that Rabbi who mocked and said “l’chvoid my boich”. Wrong. Wrong. And again, WRONG!!!
In halacha it says when doing, preparing something for Shabbos, one should say “Lekavod Shabbos Kodesh” (don’t know where, sources, anyone?) That uplifts the actions, and indeed turns the mundane into something of holiness.
We are bidden by the Torah to eat, rest, enjoy ourselves, on the holy day. ????? ???? ????. And that is Kavod Shabbos. We are enjoying ourselves (or as a baser person would say “our boich”), because that is how HaShem enjoined us to. That in itself is Kavod HaSHem and His Shabbos. Of course there are more sublime levels, as there are to anything related to holiness, but that in itself is something of great importance. To have in mind we are enjoying ourselves because we are doing Ratzon HaBorei. Our souls too have a much greater oppertunity to be in sync with HaShem and His Torah, levels of Kedusha, when the body is in a state of serene, rest, peacefulness.
Read what Rabbi Miller ztatzal (Yahtzeit this week) has to say about this subject!