The arbitrary selection of a single static position creates 
a pictorial space with vanishing point. This space can be filled in 
bit by bit, and is quite different from non-pictorial space in 
which each thing simply resonates or modulates its own space 
in visually two-dimensional form.

     Now the unique piece of three-dimensional verbal art 
which appears in King Lear  is in Act IV, scene vi. Edgar is at 
pains to persuade the blinded Gloucester to believe the illusion 
that they are at the edge of a steep cliff:

     Edgar . . . . Hark, do you hear the sea?
     Gloucester .                  No, truly.
     Edgar . Why then, your other senses grow imperfect 
             By your eyes’ anguish. . . .
             Come on, sir; here’s the place. Stand still. How fearful