Answer: Envy is a very good quality, as is shame. However, shame seems to slow you down, stop you, make you hide and shrink, but envy, on the contrary, expands you and pushes you forward, and therefore, we must use it.
However, the most important thing is envy between the friends. When I sit in class, I look at each one and envy them endlessly. I do not hate them, but I envy them. We need to control ourselves here because dislike appears along with envy.
I am grateful for the fact that my friend demonstrates to me what he can do, what he knows, the way he feels, and so on. A white envy grows in me toward his aspirations, and it pushes me forward. Therefore, envy is a very good quality.
From the Kabbalah Lesson in Russian 8/13/17