Claude Debussy's statement holds true for most forms of communication. The non verbal gestures at a meeting. The unsaid rather than the said. The stirring of memory with desire. But most of all in poetry which is described as "perfect words in perfect order" but where all the action happens somewhere else. For instance...

My son makes a gesture my mother used to make. The sun
    in their eyes.
Fluttering their fingers. As if to disperse it.
He does it again. The sun, like the drifting ashes of a distant
    past. The petals
Of some exploded yellow roses.

The miracle of it.
The double helix of it.
The water running uphill of it.

From- "My son makes a gesture my used to make" by Laura Kasisch