פּירוש אויף בראשית 49:11

אסרי לגפן עירה BINDING UNTO THE VINE HIS FOAL — He (Jacob) prophesied of the land of Judah that it would run with wine like a fountain: the vines will be so productive that a man of Judah will bind to a vine one foal and he will fully load it with the grapes of only one vine, and from the produce of only one branch he would load one ass’s colt.

Until Shiloh comes. If Yisrael is worthy the Moshiach will appear amid tranquility (shalvah). Grapes of a vine. But if they are divided into small grape-like sects, he will only appear when the final date arrives and only in the merit of Torah study. His she donkey’s foal with a vine-branch. If they are united into a single branch he will appear with the swiftness of a donkey’s foal.

סותה, a variant of the word: מסוה, “veil, or mask.”