One of the challenges many artists face is expressing the inner experiences they have inside in an external way. Conceptual photography has been used as a canvas to express these inner states in creative ways.

Whether you're trying to express a specific anxiety, joy, or inner conflict, the ability to stage a scene for a photograph can result in incredibly creative ways to portray the abstract.

Often, conceptual photography that reflects an artist's inner state is designed to be provocative and evoke emotion. While the creation of this type of conceptual photography can be cathartic for the photographer, it can also be cathartic for the viewer, who sees the emotions they have experienced expressed in such a precise way.  

Source: https://www.studiobinder.com/blog/what-is-conceptual-photography/