Two years after his marriage he became possessed of a copy of the Kabbalistic " Bible " - the Zohar of Moses de Leon.
Though his teaching was largely directed against superstition, he seems to have been inclined to mysticism, and perhaps for this reason various kabbalistic works were ascribed to him in later times.
He had a strong inclination to mysticism, but whether certain kabbalistic works are rightly attributed to him is doubtful.
It is, however, not a mere coincidence that the two great kabbalistic text-books, the Bahir and the Zohar (both meaning "brightness"), appear first in the 13th century.
Though put into the form of a commentary on the Pentateuch, it is really an exposition of the kabbalistic view of the universe, and incidentally shows considerable acquaintance with the natural science of the time.