Well no one metaphor or allegory defines or helps explain one thing by it's self. (Especially when it comes to philosophers such as Plato). The easiest way to find the answer is putting it up against different items. While it does seem to describe education and the art of learning, we can also see that it also describes the attitude towards correction as well.
It could be
obsession. As obsession is defined as the reoccurring mental thought or idea of
something. This obsession has caught you up or to overthink. For instance in a
situation that has caught you up, you engross yourself with it. Overthinking like
obsession is a mental act or a cognitive resonance which is still different
from behavior or compulsion, as the word for it.
Answer:
B
Explanation:
He told himself to do something in the future, and foreshadowing hinting at what is going to happen later.