Through having simchah on Shabbos a person can be assured that his spirit of religion will be perfect on Shabbos. This completes his yiras Shamayim, fear of Hashem, respect for Hashem.
It is an actual mitzvah to be b’simchah on Shabbos
The 11th of Kislev is the yahrzeit of Rabbi Zvi Aryeh Rosenfeld z"l. He brought many to the teachings of Rabbeinu Zal. He enriched every mitzva and every nuance of kedusha with down-to-earth excitement, total faith and bitachon. We are sincerely grateful for a rabbi who was one-stop source for amazing ruchnious and gashmious advice. So many years after his passing we still feel a deep void.