Tiferet, beauty or splendour, stands at the centre of the sefirotic tree, balancing love and judgement. It is associated with Jacob and the written Torah and is called the Holy One, blessed be he. Its union with Malkhut, the Shekhinah, is the central drama of kabbalistic prayer.
Tiferet
Beauty: the central sefirah, harmonizing mercy and judgement, identified with the Holy One, blessed be he.
Also: Tiphereth