Photographs are really useful. I think that it is very wonderful and it has lots of uses. Some of which are:
I think photographs play an important role in our lives. Great question and I hope my answer helps!
For art and documenting the moment. Describing someone written or oral can be another way for others to be in on the experience but a single picture could reduce the amount of explanation you need to do when trying to recall an experience. Furthermore, when you are trying to describe visual art, visual interpretations from your point of view may not reflect the totality of the art you are describing to. Having a photo can help the person you're talking to draw out their own interpretation from the piece.