A man should study less on Friday, that he may occupy himself with the
preparation for the Sabbath. And accordingly we find in the Gemara that
some of the great and esteemed sages occupied themselves on that day in
preparing what was needed for the Sabbath. Therefore, though one may
have many servants to wait upon him, it is a great merit personally to
prepare for the wants of the Sabbath in order thus to honor it; and let
him not think it derogatory to his own honor to honor the Sabbath thus,
for it is his honor to honor the Sabbath. It is written of H'A'ree of
blessed memory, that he was in the habit of sweeping away the cobwebs in
his house (in honor of the Sabbath), and it is well known to the
initiated what a wonderful mystery it is to abolish the unclean spirits
from the house, "And this is enough for him that understands."
THE KABBALA, _Kitzur Sh'lk_, fol. 61, col. 1.