Summarize what this paragraph says about a medieval illuminator's audience.

Compare all this with the life of a medieval illuminator. Crouched all day over a single illustration, wrist hovering just over the little pools of fresh ink, attempting with the slightest flick of the wrist to capture the curve of a bird’s feather or the glint in a saint’s eye. It’s one thing to say that a Bible took years to make. It is another thing entirely to recall that, after those years were over, the final product would be just one Bible. A single book, liable to fire, flood, dust, and decay. A single book, which would more than likely spend the duration of its existence shut up in the walls of a monastery or a palace, only to be seen by a privileged few.
The medieval illuminator's audience would have been small because a single book taking years to create would spend its entire existence in a single palace or monastery, seen by only a few.