Moreover, as the light which comes down from heaven, is not a cold barren snowlight or icelight, merely opening a field for the eye to wander in, but is full of penetrating, cheering, lifegiving warmth, thus the light which comes from Christ does not merely enlighten our mental eye, but, so far as it does indeed come from Him, pervades our whole nature, and manifests itself in the light of a holy life, no less than in moral and spiritual intuitions.
Source: wiktionary