Kabbalah su Proverbi 22:9

That brain, which is concealed Chochmah, is called the fount of blessings. It is the fount wherefrom all blessings originate. Since this brain is alight with the three kinds of white in the eyes, blessings derive from the eye, as written, “He that has a generous eye shall be blessed” (Mishlei 22:9), as the white part of the eye derives from the brain. When that eye beholds Zeir Anpin, everyone rejoices. This eye – even though it contains the three columns of right, left, and central, still it is wholly white without left (as said in the Greater Gathering, section 42). But the lower eyes of Zeir Anpin are the right and the left, two of two aspects; the right is Chesed, and the left is Gvurah with the illumination of Chochmah.