In the visual arts, a theme is a broad idea or a message conveyed by a work, such as a performance, a painting, a motion picture, or a video game. This message is usually about life, society or human nature. Themes are the fundamental and often universal ideas explored in a work. Themes are usually implied rather than explicitly stated. Deep thematic content is not required in a visual work; however, some observers would say that all visual work inherently projects some kind of outlook on life that can be taken as a theme, regardless of whether or not this is the intent of the author. Analysis of changes (or implied change) in dynamic characteristics of the work can provide insight into a particular theme.