The "Allegory of the Cave" by Plato represents an extended metaphor that is to contrast the way in which we perceive and believe in what is reality. The thesis behind his allegory is the basic opinion that all we perceive are imperfect "reflections" of the ultimate Forms, which subsequently represent truth and reality. In his story, Plato establishes a cave in which prisoners are chained down and forced to look upon the front wall of the cave. In "Allegory of the Cave" there there are two elements to the story; the fictional metaphor of the prisoners, and the philosophical opinion in that the allegory is supposed to represent, hence presenting us with the allegory itself.
The complex meanings that can be perceived from the "Cave" can be seen in the beginning with the presence of the prisoners who are chained in the darkness of the cave. The prisoners are bound to the floor and unable to turn their heads to see what goes on behind them. To the back of the prisoners, lie the puppeteers who are casting the shadows on the wall, which the prisoners are perceiving as reality.
As Socrates is describing the cave and the situation of the prisoners, he conveys the point that the prisoners would be fundamentally mistaken as to what is reality. Because we know that the puppeteers behind them are using objects to liken the shadows to reality based items and people, the prisoners would know nothing else but the shadows, and perceive this as their own reality. This is an important development to the story because it shows us that what we perceive as real from birth is completely false based on our imperfect interpretations of reality and Goodness. The point so far of the allegory is that the general terms of our language are not "names" of the physical objects that we can see. They are actually names of things that are not visible to us, things that we can only grasp with the mind. This line of thinking is said to