A little over ten years ago, my father had an accident and it put him into a coma that lasted a month. He was intubated, and put in a ward where they parked people who were in various stages of vegetativeness. I spent a lot of time there, reading to him, watching out for him, and I got to know various people on staff in the hospital. I had thought these were some of the worst jobs in the world, but I got an impression that it was quite the opposite, so I checked it out, and they all said they loved their jobs. I had plenty of time to think, and I realized that in many jobs, esp the ones I have done, the way you help people can be kind of abstract, hard to visualize. But people who care for others as their job, see the result of their work every day, all the time.