You could call it my way of repaying them.

[After all... what better reimbursement is there than one that goes beyond mere money?]

There were bound to be other generations that needed the guiding hand that I got while I was still a student. Sure, I could have done that at any other school... but the academy I serve doesn't just educate students -- it raises protectors that will help safeguard the future of my world.

The least I can do is pass my experience on to them.