Medieval theories of meter, in fact, frequently assume that the pleasure man takes in meter is a simulacrum of the pleasure he takes in the observation of the principle of order and recurrence in a universe which is itself will and order incarnate.

from: Poetic Meter and Poetic Form, Paul Fussell 1965

Hmmmm.
by simulacrum I guess he must mean an insubstantial form or semblance of something; or maybe the replacement of reality by its representation – or perhaps merely an image devoid of the substance contained in the original?

IMAGE CREDIT: sodahead.com