First we notice how gentle, gradual and natural is the process of sublimation that Dionysius demands of us. According to him, the mystic life is a life centred on reality: the life that first seeks reality without flinching, then loves and adores the reality perceived, and at last, wholly surrendered to it, is “led by God alone.” First, the self is “inclined to learn _true_ wisdom.” It awakes to new needs, is cured of its belief in sham values, and distinguishes between real and unreal objects of desire. That craving for more life and more love which lies at the very heart of our selfhood, here slips from the charmed circle of the senses into a wider air. When this happens abruptly it is called “conversion”; and may then have the character of a psychic convulsion and be accompanied by various secondary psychological phenomena. But often it comes without observation. Here the essentials are a desire and a disillusionment sufficiently strong to overcome our natural sloth, our primitive horror of change. “The first beginning of all things is a craving,” says Boehme; “we are creatures of will and desire.” The divine discontent, the hunger for reality, the unwillingness to be satisfied with the purely animal or the purely social level of consciousness, is the first essential stage in the development of the mystical consciousness. So the self is either suddenly or gradually inclined to “true wisdom”; and this change of angle affects the whole character, not only or indeed specially the intellectual outlook, but the ethical outlook too. This is the meaning of “purgation.” False ways of feeling and thinking, established complexes which have acquired for us an almost sacred character, and governed though we knew it not all our reactions to life—these must be broken up. That mental and moral sloth which keeps us so comfortably wrapped in unrealities must go. This phase in the mystic’s growth has been specially emphasized and worked out by the Christian mystics, who have made considerable additions to the philosophy and natural history of the soul. The Christian sense of sin and conception of charity, the Christian notion of humility as a finding of our true level, an exchanging of the unreal standards of egoism for the disconcerting realities of life seen from the angle of Eternity; the steadfast refusal to tolerate any claim to spirituality which is not solidly based on moral values, or which is divorced from the spirit of tenderness and love—all this has immensely enriched the mysticism of the West, and filled up some of the gaps left by Neoplatonism. It is characteristic of Christianity that, addressing itself to all men—not, as Neoplatonism tended to do, to the superior person—and offering to all men participation in Eternal Life, it takes human nature as it is; and works from the bottom up, instead of beginning at a level which only a few of the race attain. Christianity perceived how deeply normal men are