In the garden, our eyes may search out the composition painstakingly planned, with objects man-made harmonizing with those nature created. It is deliberate, static, certain.
The sight of a dark-eyed Junco (Junco hyemalis) resting on an Aloe barbarae, creates its own composition without any intervention. We just try to remember the bird's name, and lose the moment it landed on the leaf to fluff itself. The thought has interfered with the moment.
In the eye's greedy search for beauty, the eye and brain may be forced to work: does this "go" with that? Ah, the orange matches the orange centers...so...yes? Thought makes satisfaction a labor at times. Work worth doing?
That labor is a whole different experience from the instant, brief perfection of a blurred impression.