Anything edifying is enlightening. Edifying things uplift people intellectually or morally and help them learn. Good literature, art, and music are edifying.
The original meaning of edify was "to build," and things that are edifying build up a person, especially in an intellectual or moral way. It’s often used in the negative. If you say something is not edifying, you mean that it’s unpleasant and unacceptable. Edifying applies to things that help you become a better person. A wise saying is edifying. A powerful documentary is edifying. The words of a good teacher are often edifying. Word definitions are definitely edifying!