Knowledge

The reference in the final verse is to the discussion of knowledge in Plato’s Seventh Letter where the fifth stage of knowledge is called “the thing in itself.”

The map is not the territory
The menu ain’t the meal.
So is it all a fairy story
Or is there something real?

The cup is not the content,
The painting’s not the art.
With purity of true intent
Look into the Heart.

Name and definition,
Image and true myth,
Defining our condition
Until we get the fifth.