Question: Is fear generated by hatred or by some program of a measure of self-preservation for the recognition of evil, as a manifestation of self-cognition? How necessary is fear?
Answer: It depends on what kind of fear because there are many types of fear.
In principle, negative fear is needed to understand our limitations.
Positive fear is necessary so that we, because of it, would rush under the wing of the Creator.
From KabTV’s “Fundamentals of Kabbalah,” 12/29/19