"The feasts of Hashem"
Synopsis
Rabbi Yitzchak says that when God saw the evil that would prevail in the world, He hid the light for the righteous in the World to Come. He tells us about the unity that only exists when night and day are united, when light and darkness are united. Since the Congregation of Yisrael is in exile it is not presently considered to be 'one,' and only when it goes out of exile can it be united with God.