This story is a famous one in Persian literature. The story tells to children when they do not understand the thing, it is better to ask about it and do not shame cause of questioning. And other point is friendship. The main character of the story is a little duck. It has heard from grandpa over and over about tasting of fish but it has never eaten and seen the fish. Once it goes to river and see fishes but it does not know they are fishes. So it shames from asking about them. Finally he become a good friend with the fishes.