Former Students visit

What was the moment (or moments) this past week when you felt most connected, engaged, or affirmed as a teacher - the moment(s) when you said to yourself, "This is what being a teacher is really all about"?

I have had several former students return to visit with my class over the past week. One came back to apologize for not making the most of the class while he was in school. He graduated two years ago and the REAL WORLD has been cruel to him. Another student emailed me and thanked me for the time I spent just making sure he was ready for life outside of high school.He is now in school at SAM in Houston Texas.
Since teaching is my third career I am blessed daily with knowing I am in the right place. Of the former jobs , teaching has got to be one of the most stressful but fulfilling jobs that I have had.