Kabbalah is a mystical tradition within Judaism that explores the nature of the divine and the universe through the study of the Sefirot and the Tree of Life. It delves into concepts such as Ein Sof (the concept of infinity), the manifestation of the physical world, and the interpretation of the Torah through Pardes - the Four Levels of Interpretation. Kabbalah also touches on practical aspects such as magic, ritual, and mystical psychology, including the understanding of the different levels of the soul - Nefesh, Ruach, Neshamah, Chayah, and Yechidah.