I'm curious what kind of work you are up to. I thought you were still on a business trip.
There is a Korean word to describe what I gained from my work. It is called Boram (보람). Without Boram I wouldn't be teaching.
For me the Boram is summed up in the what I see in kids eyes when I see them on the street and they tell their friends with a proud tone, "That's my teacher."
Learned something new "Boram". :)