The image desires a wake
The idea of absence requires that of presence, the (idea of the) presence of the real.
Everything is real: what I see, what I imagine, the cloud and the face I read in it, my fears, my ideas, the image.
As I look at an image, it desires that I re-present/re-enact a wake: the absence of the deceased in the presence of the corpse, the absence of the real in the presence of the image.
If everything is real, everything can be re-presented through an image. This doesn't imply that the object (the real re-presented) is unimportant. Quite the contrary. The wake (even a re-enacted one, which is all the image is allowed to desire) has its source in the object. Will you mourn equally the loss of a dear friend and that of a suitcase?