Binah refers to the analytic, distinguishing aspects of God's thought.
It is the uppermost feminine element in the Godhead, and is symbolized as the mother of the Shekhinah. Many of the symbols associated with Binah are therefore identical to those of the Shekhinah.
Having received the seed from Hokhmah, Binah conceived and gave birth to the seven lower Sefirot.
There are fifty "Gates of Understanding."
Human Imagery (Primordial Man)
Names of God
Other Symbols and Images
Sources: Prof. Eliezer Segal