... back to the search for a word beneath the word "image" (by the way, that's when I discovered the Secret of Comment Box : if you want responses, don't make pronouncements - just ask a question) -

anyway, Wallace Stevens is almost too quotable, but I happened on this, from his poem "Study of Images II":

As if, as if, as if the disparate halves
Of things were waiting in a betrothal known
To none, awaiting espousal to the sound

 
Of right joining, a music of ideas, the burning
And breeding and bearing birth of harmony,
The final relation, the marriage of the rest.

This plays with the aura, the resonance, the symbolism, the overtones, the whole or the source of "disparate" imagery...