Answer: Confidence brings us joy. The feeling of confidence is a result of the special illumination that comes from Above and sustains a person as if on a pillow of air, thus filling him with joy.
There are two forms of confidence: confidence because of what I have in my pocket, to what extent I am stronger than the environment, or confidence in the environment, of how strong the environment is and the fact that I am incorporated in it, which means that my confidence depends on the environment. It is one of the two.
Confidence is the connection with the environment when I am either stronger than the environment or when the environment is stronger than me, but I am connected to it. The best feeling of confidence is when I am satisfied with a state of smallness. Then, I am surely in arms of the environment, feeling confident like a baby in the arms of its mother.
When a baby grows, he doesn’t feel the same sense of confidence he felt before. He already has doubts and is afraid of everything, while a baby in his mother’s arms doesn’t worry about anything, and that is the best time.
From the 3rd part of the Daily Kabbalah Lesson 3/5/14, Writings of Baal HaSulam