All I can sense here is love. You extended the love to your neighbor who had no one to care for her. It only takes love, patience and kindness to do such. Imagine the fact you were not there, it means she would have died out of lack of care and attention because this is one thing that kills the old people fast. Caring for your mother was the sweetest part of it, at the end you get the motherly blessings which is very important. I wish you all the best!