Time and time again I witness and experience the uneasy relationship the written and the visual have to one another. They are different types of language in the extreme. Both are a product of personal experience. It is impossible to fully understand either without shared and accessible context. With an image there is the possibility that it could communicate something immediately, but to truly understand the content one requires context.
Not only does the content potentially communicate, but so does the mechanism of the path to it and the audience to whom the content is communicated. This is more finite than the interpretation by the observer, which can be any one of a myriad of responses; again very personal to the individual.