Rabbi Jonathan E. Blake’s commentary from the Reform Judaism website:
In today’s reading, Sukkot is nothing more than Chag HaAsif, “the Feast of Ingathering,” one of three annual pilgrimage festivals (Pesach and Shavuot are the other two).
There exist embellishments of the Sukkot observance over the course of the Torah. From these we can infer an important Jewish teaching that applies not only to Sukkot, but also to our lives. That teaching is known as hidur mitzvah.
Plenty of mitzvot can be beautified. In fact, Sukkot itself provides us with an ideal case study in hidur mitzvah. We all know the commandment to build a sukkah, but we don’t stop with the basic frame and thatched roof that constitute its essential requirements. We embellish it with ornamental touches – fruits and vegetables, flowers and garlands. We take a mitzvah and we make it beautiful.
We take the poor sukkah, this temporary little home, and we make it beautiful – almost in holy defiance of its basic nature, almost as if to compensate for all its deficiencies. We take a naked, frail thing and we make it beautiful.
And that, in the end, is really what life is all about: taking what life gives us, with all its brokenness and deficiencies, and making it as beautiful and meaningful as we can.