When you see a real smile and know that it was something that person was not able to do a few months ago; when you hear positive things and you know that a few months ago those thoughts where not possible for that person; when you see that life has some meaning for that person and you know that a few months ago it didn't.
You know that what ever it took, it was worth it.

The road is long and it is just beginning. There will be bumps along the way, but in the end, I think this person will be ok. The desire to make right choices, the desire to find something bigger then oneself is there.