Perhaps synesthesia? "A neurological condition in which the brain interprets one set of sensory input in terms of a different one; i.e., 'smelling' shapes, 'tasting' sounds, 'seeing' scents, etc."
Well, not my preferred literary mode, but hey it worked for Lewis Carrol
Nonsense. Everything Carrol wrote was quite meaningful.
I work at a cologne and perfume factory, so I have to ask: How exactly does one have the "fragrance of a Gibbous moon"?