Shekhinah is the name for God's immanence in the Talmud and Midrash. But in the Kabbalah, Shekhinah becomes a full-fledged She: the feminine side of God, daughter of Binah, bride of Tif' eret. Shekhinah is "the secret of the possible," receiving emanation from above and engendering varieties of life below. She complements Her masculine partner, the Holy One, blessed be He, mollifying His occasional outbursts. The joining of Shekhinah and Tif' eret — the feminine and masculine halves of God — becomes the focus of spiritual life.
— Daniel C. Matt, God & The Big Bang