Sukkot

Rav Kook explains why the Abarbanel (Dvarim 16) writes that just as Pesach celebrates Am Yisrael, and Shavu'ot- Torat Yisrael, Sukkot represents a microcosm of Eretz Yisrael! The common denominator between many aspects of the holiday and her mitzvot is that the ideal world, as was meant to be created, is to have taste in the tree (preparations), and not just in the fruit, an essential greatness in Eretz Yisrael and the Sukkah, where even the mundane is holy.

In the midrash we find three explanations for this mitzva.

Sukkot is a time for Jewish unity and, in the future, for all nations of the world to come to Zion.