The final quality that should be considered in poetic diction, according to John Ciardi and Miller Williams' How Does a Poem Mean? (1959), is that "a word is a picture", by which they mean that the origin of most words can be found in some sort of poetic image. Shakespeare's work provides thousands of examples of this for two main reasons. The first, as we know, is that he created so many words himself. The second is that he never settles for a tired expression in his writing, and thus the reader is constantly surprised by its contents. For example, when Iago tells Roderigo his age, he doesn't say, "I'm twenty-eight years old", but instead, "I have looked upon the world for four times seven years", which gives us an entirely new way of considering the nature of existence. And for an example of pure imagery, have a look at this passage from Antony and Cleopatra (3.6), during which Octavius reacts angrily to being surprised by his sister Octavia's arrival. She's married to Antony at this point, we must remember, so Octavius is looking for reasons to be offended. But my point here doesn't regard the plot, rather it's the way the words evoke the power and splendour of Rome through the use of words as pictures:

Why have you stol'n upon us thus! You come not

Like Caesar's sister: the wife of Antony

Should have an army for an usher, and

The neighs of horse to tell of her approach

Long ere she did appear; the trees by the way

Should have borne men; and expectation fainted,

Longing for what it had not; nay, the dust

Should have ascended to the roof of heaven,

Raised by your populous troops: but you are come

A market-maid to Rome; and have prevented

The ostentation of our love, which, left unshown,

Is often left unloved; we should have met you

By sea and land; supplying every stage

With an augmented greeting.