In what ways, generally, does Platos description of the Forms, and the philosopher in the cave, fit nicely with Socrates general attitude toward life?

One argument Socrates offers for the immortality of the soul makes reference to the Forms. See page 7 in the text.

Briefly summarize that argument, and evaluate it.

In what ways, generally, does Plato’s description of the Forms, and the philosopher in the cave, fit nicely with Socrates general attitude toward life?