From the writings and talks of the Lubavitcher Rebbe, Rabbi Menachem M. Schneerson
1. A gathering of Jews, especially children, is a joyful event; joyful for Jews, and joyful for G‑d. For when G‑d, our Father in heaven, sees His children gathered together, loving each other and united, it provides great joy to G‑d. It is therefore an au...