A man should study less on Friday, the kabbalists teach, and spend the saved hours preparing for the Sabbath. This is one of the stranger reversals in Jewish life. Normally Torah study outranks everything. But on Friday, peeling potatoes and sweeping the floor outrank the page of Talmud.
In the Gemara, some of the greatest sages are shown doing precisely this kind of work with their own hands. Rav Chisda chopped vegetables. Rabbah and Rav Yosef split firewood. Rav Zeira tended the fire. They were the giants of their generation, and they bent low on Friday afternoon to peel, carry, and kindle.
Even a man with many servants, the text insists, should take up the broom himself. It is not beneath his honor. It is his honor. The Sabbath is a queen. A king does not send his servants to greet the queen while he sits in another room. He walks out to meet her.
The Arizal, Rabbi Isaac Luria of Safed (1534-1572), whose Kabbalah reshaped Jewish mysticism, kept this teaching in the most literal way. His disciples recorded that every Friday afternoon he personally swept the cobwebs out of his house. To a kabbalist, the cobweb was not only dust. Hidden inside every corner of a neglected room were the kelippot, the husks of unclean energies that cling to matter when holiness is absent. Sweeping was an act of exorcism.
The text closes with the kabbalistic code phrase: And this is enough for him that understands. Meaning the rest is for students of the Zohar, first printed in 1558 but composed centuries earlier. This teaching, preserved in Hebraic Literature (1901), is a reminder that the Sabbath begins on Friday morning, with a broom in the hand of whoever is willing to use it.