Q: Is the difference between Judaism and Kabbalah that Judaism is a religion, and Kabbalah is a wisdom based on rationality and understanding?
A: Kabbalah is the wisdom of the revelation of the Creator, the system of the attainment of the Upper revelation, a sublime truth and superior knowledge. Religion does not deal with any of that.
A religious person must know how to follow rules and live within their boundaries. Kabbalah, however, leads to the attainment of the Upper World.