Plato imagines a group of people who have lived chained in a cave all of their lives, facing a blank wall. The people watch shadows projected on the wall by things passing in front of the cave entrance, and begin to ascribe forms to these shadows. According to Plato, the shadows are as close as the prisoners get to seeing reality. He then explains how the philosopher is like a prisoner who is freed from the cave and comes to understand that the shadows on the wall are not constitutive of reality at all, as he can perceive the true form of reality rather than the mere shadows seen by the prisoners.

The Allegory is related to Plato's Theory of Forms, wherein Plato asserts that "Forms" (or "Ideas"), and not the material world of change known to us through sensation, possess the highest and most fundamental kind of reality. Only knowledge of the Forms constitutes real knowledge. In addition, the allegory of the cave is an attempt to explain the philosopher's place in society.

The Allegory of the Cave is related to Plato's metaphor of the sun and the analogy of the divided line, which immediately precede it at the end of Book VI. Allegories are summarized in the viewpoint of dialectic at the end of Book VII and VIII. This relates to the idea of forms as people struggle to see the reality beyond illusion.



http://en.wikipedia.org/wiki/Allegory_of_the_cave
http://www.mlahanas.de/Greeks/PlatosCave.htm

imho this sort of reading is what should be in our schools...

peace always
mike