According to Hagigah 13a, a child studying a passage describing this object was burnt by divine fire after pondering the meaning of the word hasmal. A passage about this object is read as a haftarah on the first day of Shavuot, despite the Mishna’s ban on discussion of sexual matters, the creation, and this object without prior wisdom. A discussion of this object and another above it on a firmament is commonly interpreted as a representation of the heavenly spheres through the four hayyot in Guide for the Perplexed. Contemplation of palaces from hekhalot literature features in a mystical school named for these objects (15[1])known as (*) Merkabah. This object is borne immediately above “Living Creatures.” A “throne of sapphire” rests on this object, driven by a “Likeness of Man.” For 10 points, name this object with wheels within wheels seen in Ezekiel’s vision of God. ■END■