Klipot (the impure forces, the “rind” or “peel”) are a special system that does not allow us to touch desires if we lack the forces to overcome them. Klipot are like guards, as it is written, “The Klipa (rind) protects the fruit.”
We hate Klipot, thinking that they are evil forces, while in reality they are very useful. They save us by limiting us, repelling us, and scaring us away! They build all sorts of obstacles before us, which we can overcome only when we become worthy of what stands behind the obstacle.
Imagine what would happen if a little child could do anything he wanted. How much harm would he cause to himself and to others? But nature does not give him the ability to do this.
This is why there are three impure Klipot in the Worlds of BYA, which stand against ZAT de Bina, Zeir Anpin, and Malchut. They are called “the stormy wind” (Ruach Seara), “the great cloud” (Anan Gadol), and “the all-consuming fire” (Esh Mitlakahat). Only by going through them will you reach the World of Atzilut!
These impure Klipot protect holiness. We have to overcome the Klipa and become stronger than it. Then we can touch holiness. Until then we will have to deal with the impure forces if we are not ready for more.
Therefore, the system of the impure forces, Klipot, plays an exceptionally important role: It is the system of protection. We have to learn to look at everything from the Creator’s perspective, and He did not do anything in vain.
From the 3rd part of the Daily Kabbalah Lesson 12/6/10, Beit Shaar HaKavanot