[JasonTakeshi]

Would a mother give her life to save her children? Probably yes.

Why would she sacrifice her life in order to save her children?

- Selfishness. She wouldn't probably bear the pain of loosing her children, therefore she chooses to sacrifice herself so that she wouldn't have to bear with the loss of the children if they were to die if she didnt sacrifice herself.

You could say that she sacrificed herself in order to give life to her children, to give them an happy future.

But whose wish is this? Why does she want them to have an happy future? Why does she want them to be happy?

Because their happiness brings her happiness.

But the children, in the other hand, would suffer the loss of their mother. So thats pretty much passing the "painfull cross" to the children because she cannot bear it herself.

Everything we do is for ourselves. Just ourselves.