Although Chanukah was not originally established as days of
feasting and rejoicing (because the redemption of Chanukah was
spiritual – not physical), one may and should celebrate with
additional meals and singing, amid Torah learning (without cardplaying),
to commemorate the completion of the Mishkan, which
occurred on Chanukah. (MB 670:6-7, also see Biur Halachah).
Adopted from the shiurim of Ha Rav Leible Sternberg / st