All our work in terms of free will is conducted in the concealment of the Upper Governance. This period is described in the Introduction to The Study of the Ten Sefirot, Item 53: …"The reward is according to the pain.” Since His Guidance is not revealed, it is impossible to see Him but only in concealment of the face, from behind…and might doubt…In this manner, one is always left with a choice to either keep His will or break it. This is because troubles and the pains he suffers make him doubt the reality of His Guidance over His creations….
Imagine that you see through the prism of your egoistic desire a person standing in front of you. There are the Creator and me, and in between us stands my egoistic nature. It is as if a kind, good person is approaching me, as if he is a doctor holding a syringe in his hand to give me an injection, and I am a little child. I am looking at his kind smile and the syringe that he is hiding in his hand, and I freeze in horror. Yet, he is coming closer and closer, it seems, to hurt me.
Get the picture? That’s the state we are in. We need to get acquainted with Him, understand Him, and sense His intentions, even if He may want to give us an injection. We have no other choice if we are ill and need to be healed (corrected).
Then, you understand that all these imaginary terrible pictures – the injection, this entire world with its suffering and evil – are merely the pictures drawn in your egoistic substance. Reaching the degree of faith means rising above this substance and not feeling it any longer. You will realize that all of that was a childish fantasy which in reality never existed. The Light, the kind attitude of the Creator, seemed to your egoism as a painful injection. Like children who are scared of syringes, so were we afraid of Him.
From the 3rd part of the Daily Kabbalah Lesson 6/10/10, Introduction to the Study of the Ten Sefirot