What is the Mystical Qabalah?

The Qabalah (from the Hebrew QBL, meaning "that which is received") is a tradition within Orthodox Judaism which teaches how men are supposed to complete and further God's work of Creation through a variety of meditative and Mystical Qabalah practices, including deep contempation on the nature of God.

Qabalah (the proper Hebrew spelling) has also found its way into mystic Christianity (frequently spelled Cabala, Cabalah, Cabballah, Qaballah and other variations) which teaches Qabalism in light of Christian ideas (like the messianic nature of Jesus) and new age mysticism (where it will be frequently spelled Kabalah, Kabballah, Kaballah, Kabala... etc).