Man tells his aspiration in his God but in his demon he shows his depth of experience.

The aphorism contrasts two ways people reveal themselves through the figures they imagine. A person’s “God” expresses what they long for—an idealized projection of hopes, moral aims, and the kind of greatness they wish to embody. By contrast, the “demon” discloses what they have actually confronted: fear, temptation, suffering, and the hard knowledge gained from lived experience. Read this way, Fuller suggests that ideals alone are incomplete measures of character; the darker, more troubling images a person recognizes (or wrestles with) can testify to depth, complexity, and the education of the soul. It also implies that self-knowledge requires attending to both aspiration and shadow.