Answer: The inability to connect, to understand what love is, is the recognition of evil. What love is, we only learn from its opposite. Therefore, the Creator created egoism as absolutely opposite to His property so that we, realizing our natural egoism, gradually move to the opposite of it.
Question: Recognition of evil is understandable. But why do you always use such a negative word as “hatred”?
Answer: What else can you oppose to love? Love and hatred are two properties that are opposite to each other.
Question: Hatred of one’s own evil or one’s neighbor?
Answer: Hatred of my own evil, of the fact that I cannot imagine any connection with others, a dissolution in which my “I” disappears. This is impossible for me.
But this is what was created by the Creator. And therefore, it turns out that the search for connection leads to rejection, and rejection leads to a feeling of true love.
From KabTV’s “Fundamentals of Kabbalah,” 12/29/19