Question: It is said: “Do good.” But how can we do good if only evil is created, and we still know nothing about good?
Answer: Evil is purposely created in our sensations so that we turn it into good. In reality, there is no evil. Our perception is turned inwards, and because of that everything good that we receive appears to us as evil. Everything that is perceived inside us is felt as evil because we compare ourselves with what exists outside of us. That is, evil is the division between me and others.
Evil does not exist on its own. Namely this paradigm, this method of egoistic fulfillment, this inward direction is evil. As soon as we change it, it immediately disappears and so does our sense of all evil in the world.
From the Virtual Lesson on Fundamentals of Kabbalah 6/19/2011