Mom is like an angel who always gives me endless love and never asks for any reward. As her daughter, the only thing I can do for her is to be filial, so that her love is not in vain. Someone had asked me if I am a devoted son. I'm trying to be, but obviously I wasn't. When I was a kid, I didn't even know what it meant to be filial. Until a conversation with my mother made me understand that I had to love her and be filial, which also changed who I am, since I started to realize that mom would get older and older and that I would have less and less time to stay with her. Mom is always with me whenever I need her, so I rely on her a lot. I usually thought she would be with me forever, so I hadn't thought about being filial to her and making her happy, nor had I appreciated the time I spent with her. Until my fifth birthday, Mom would tell me that as the clock changed, she was getting older, meaning the time spent with her was decreasing. I was terribly stubborn with my mother before I was five, even though I loved her very much. Once upon a time, he asked...