Revelation and Mystical Illumination
“The historian of religion is entitled to consider the mysticism of the Merkabah to be one of the Jewish branches of Gnosticism. However rare the references in the extant texts to gnostic myths, or abstract speculations on the aeons and their mutual relations, certain fundamental characteristics of Gnosticism are nevertheless fully congruent with the kind of mysticism we find in the Merkabah writings: the possession of a knowledge that cannot be acquired by ordinary intellectual means but only by way of a revelation and mystical illumination; the possession of a secret doctrine concerning the order of the celestial worlds and the liturgical and magical-theurgical means that provide access to it.”
–Gershom Scholem, Origins of the Kabbalah, 1987, pp. 21-2.