illumination

(noun) a condition of spiritual awareness; divine illumination. Synonyms: light. Examples: "Follow god's light."

(noun) the degree of visibility of your environment.

(noun) an interpretation that removes obstacles to understanding. Synonyms: clarification, elucidation. Examples: "The professor's clarification helped her to understand the textbook."

(noun) the luminous flux incident on a unit area. Synonyms: illuminance.

(noun) painting or drawing included in a book (especially in illuminated medieval manuscripts). Synonyms: miniature.