And a lot of poetry is putting yourself back into the state of wonder that you have before things when you're a child. It's not only a joyous wonder, it's sometimes a grief stricken wonder.
Not bodies produce sensations, but element-complexes (sensation-complexes) constitute the bodies. When the physicist considers the bodies as the permanent reality, the `elements' as the transient appearance, he does not realise that all `bodies' are only mental symbols for element-complexes (sensation-complexes