the Messiah is described as the 'central column' (i.e., of the Sephiroth system), and of this column it is said: 'The column of the centre is Metatron, whose name is like that of the Lord... it includes all gradations from Above to Below and from Below to Above, and binds them together in the centre.'
Jung identifies the Sephiroth system's central column with the Zoharic Metatron figure, establishing it as a structural archetype of mediation between cosmic extremes and the Original Man.
, Aion: Researches into the Phenomenology of the Self, 1951thesis