9. While the popular philosopher Albo rightly declares that the nature of the soul is as far beyond all human understanding as is the nature of God,(940) the mystics sought all the more to penetrate its secrets. The Cabbalah also divides the soul into three different substances according to the three Biblical names, assigning their origins to the three different spheres of the universe, and reiterating the Platonic theory of the preexistence of the soul and its future transmigration. This division into three parts provided scope for all types of theories concerning the soul in its sensuous, its moral, and its intellectual nature. Fundamentally the Cabbalah considered the soul an emanation from the divine intellect with a luminous character just like the philosophers. But in the Platonic view of the ascending order of creation, which forms the basis of the Cabbalah, this mundane life is an abyss of moral degradation, so that the soul yearns toward the primal Source of light, finally to find freedom and bliss with God.(941) Thus the later Cabbalah returned to the teachings of Philo, the Jewish Plato, for whom death was only the stripping off of the earthly frame in order to enter the pure and luminous world of God. 10. With Moses Mendelssohn, who in his _Phædon_ tried to translate Plato’s proof of immortality into modern terms, a new attitude toward the nature and destiny of the soul arose in Judaism among both the philosophers and the educated laity. Mendelssohn not only endeavored to prove the immortality of the soul through its indivisibility and incorporeality, as all the neo-Platonists and Jewish philosophers had done before him; he also attempted to show from the harmonious plan which pervades and controls all of God’s creation, that the soul may enter a sphere of existence greater in extent and content than the little span of earthly life which it relinquishes. The progress of the soul toward its highest unfolding, unsatisfied in this life, demands a future growth in the direction of god-like perfection.(942) At this point the philosopher enters the province of faith, and thus furnishes for all time the cardinal point of the belief in immortality. The divine spirit in man, which is evinced in the self-conscious, morally active personality, bears within itself the proof and promise of its future life. Moreover, this corresponds with the belief in God as One who rules the world for the eternal purposes and aims of perfection, who cannot deceive the hope of the human heart for a continued living and striving onward and forward, without thereby impairing His own perfection. For we all close our lives without having attained the goal of moral and spiritual perfection toward which we strive; and therefore our very nature demands a world where we may reach the higher degree of perfection for which we long. In this sense we may interpret the Psalmist’s verse: “I shall be satisfied, when I