Everything depends on how able we are to endure the desires that become revealed in us. On the spiritual path a person reveals bad, incorrect desires inside of him, showing how far away he is from the goal and how opposite he is to it. But if his environment acts correctly, then he immediately discovers that all of this is for his own good.
This way, my willingness to endure means that I prepare myself to accept any revelation of evil and to turn it into goodness. If, however, I am not ready for this, then every new revelation of evil trips me and I do not want to get back up, falling into despair or simply not knowing what to do. And that’s how the chance I was given gets cut off.
The influence of the environment which maintains a connection with the goal, constantly aims a person at this goal. This is the right preparation, the willingness to endure. If I have prepared this force, then the evil becomes revealed in conformity to it and I see it as the lever for ascending to goodness.
From the 1st part of the Daily Kabbalah Lesson 3/2/11, Writings of Rabash