illumination

n 1: a condition of spiritual awareness; divine illumination; "follow God's light" syn light

2: the degree of visibility of your environment 3: an interpretation that removes obstacles to understanding; "the professor's clarification helped her to understand the textbook" syn clarification, elucidation

4: the luminous flux incident on a unit area syn illuminance 5: painting or drawing included in a book (especially in illuminated medieval manuscripts) syn miniature

Source: WordNet. Princeton University

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