Water
When we clean our HDD or SD cards, we have to face a lot of pictures which we don’t remember when nor where we took them, and they force us remind what happened at that time when we took the picture, and also force us face the scene or situation.
Pictures are always things of the past, not present. Things in the frame were there, and we might not be able to know what like they are now. If we know, we can’t change the truth there were they, ’cause we see them in the picture.
But those pictures make us face to them; it means that they have some ability and possibility of present, in this meaning.
I didn’t remember when I took this picture, but it might be taken in a aquarium.