I feel the same way 人活着就是受苦。。。

But at the same time, I can experience the kind of emotions I have for my kid. I think we are all selfish, but most of us can be selfless with our kids.  I enjoy the feeling that I can do everything for her without asking anything in return.  I guess what I am saying is: I enjoy to be able to love someone else more than I love myself.