Levush Malchut ("Robes of Royalty") is a work of practical halacha, accompanied by the reasons behind the various halachic decisions according to logic and earlier sources, and includes sections on Torah commentary, philosophy, and Mysticism.
The Levush is an exception among the codifiers in treating ritual-legal matters from a Kabbalistic standpoint; his approach, to a certain extent, "tended to draw together the Talmudists and cabalists, otherwise in danger of an open breach" [REF].