The Athenians were a blind-following people, Socrates was one of the world's greatest thinkers. He offered questions, challenged people's thoughts, and treated life with the great question of a 4 year-old: WHY?
Socrates idea that philosophy calls on us to care for the soul is an important one for us to even consider today. Philosophy is the investigation of truth or principles. If the soul is merely pleased by entertainments it is a shallow soul. If the soul is not exercised because a man's work is rote or merely brain work, it remains a shallow soul. If the soul is given opportunity to know, to explore the truth of a principle, to understand then there is room for growth, and growth is good.
The soul is that which finds something to believe in. If we don't cultivate that, we lose our humanity.
I spent my last summer in Haiti. It is dirty, disgusting, gross, and I didn't like my enviornment. But, I got to teach English to school children and just love on them. This fed my soul. It didn't feed my physical need of comfort. It didn't feed or stimulate my brain for my own learning of new information. I wouldn't have gone to feed my soul had I not believed I could be of service and help to those kids.
Hope this helps. That is a great piece to read and registering the difference between mind, body and soul is always difficult.