The wisdom of Kabbalah deals only with the person’s internality and how to correct his egoistic nature. Adam was the first Kabbalist. He lived 5,778 years ago when the ego was still small. Abraham followed and learned to transcend the ego and gathered various people together who later became the people of Israel. He taught them the method of the wisdom of Kabbalah and they lived in the love of others until the destruction of the Temple when hatred broke out between them. The wisdom of Kabbalah was hidden at that point along with The Zohar which was written by Rashbi and his students. People tend to recoil from the wisdom of Kabbalah since it is contrary to all that exists in this world and speaks of diminishing the ego in order to change human nature.