Pencil: I'm sorry
Eraser: For what? You didn't do anything wrong.
Pencil: I'm sorry cos you get hurt because of me. Whenever I made a mistake, you're always there to erase it. But as you make my mistakes vanish, you lose a part of yourself. You get smaller and smaller each time.
Eraser: That's true. But I don't really mind. You see, I was made to do this. I was made to help you throughout your life. Even though one day, I know I'll be gone and you'll replace me with a new one, I'm actually happy with my job. So please, stop worrying. I hate seeing you sad. :)
I found this conversation between the pencil and the eraser very inspirational. Parents are like the eraser whilst their children are the pencil. They're always there for their children, cleaning up their mistakes. Sometimes along the way... they get hurt, and become smaller (older, and eventually pass on).
Though their children will eventually find someone new (spouse), but parents are still happy with what they do for their children, and will always hate seeing their precious ones worrying, or sad.
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"We have made the (care of) parents incumbent upon man. His mother carried him through the fatigue (of pregnancy) followed by the hardship (of labor). And the weaning takes two (more) years. Thank Me and your parents. (Remember)! Towards Me is your return!" [Quran 31:14]