Question: Who is aware of evil? And what is “evil” in Kabbalah?
Answer: One who considers himself a sinner is one who is aware of evil, but only to the degree to which he is righteous.
In other words, a person who is aware of evil is called righteous.
Question: And who was he before that?
Answer: No one. He did not understand anything and could not say to himself, “Before, I was a sinner.” Only to the degree to which a person experiences himself as a sinner is he already righteous.
From the Kabbalah Lesson in Russian, 3/4/18