The Zohar, Chapter “VaYakhel (And Moses Assembled),” Item 432: And now that Divinity needs correction, to bond with her husband, ZA, that redemption of Egypt must be shown to contain four redemptions. And with the awakening of the Mochin of the exodus from Egypt, she is corrected to bond with her husband because she has become liberated from all four Malchuts.
Shechina (Divinity) must go through four exiles which will be followed by the final redemption, the exodus out of the final exile. Malchut comprises four layers of the desire to receive pleasure. Thus, each time she must reveal a greater egoistic desire and exit out of it, meaning to use it for the sake of giving; and then once more reveal an even greater desire to receive pleasure, and again correct it with the intention to give. And so on four times over according to the structure of Malchut of Infinity. In so doing, we will conclude her correction, and she will be completely corrected.
Presently we stand on the threshold of the final redemption. The greatest desire to receive pleasure, which is being revealed today in the souls, must be corrected with the intention to give. And then there will be no more exiles.
From the 1st part of the Daily Kabbalah Lesson 4/4/10, The Zohar