Serenity Pray

I was teaching catechism this morning.
I ask my students to copy the Prayer.
I realize that it's "quite long" for their age to copy so long.
So I just ask them copy the verse:
"God grant me the serenity to accept the things I cannot change;
the courage to change the things I can."

Explaining to them I ask them to answer question so that they fully understand the meaning of "SERENITY"

The question is this:
"What is the things that you cannot change in home"
one of my students write:
"I don't like to play racing car with my brother,
but I still play with him because he is my brother"
How understanding the kids are!!
They really teach me the true meaning of serenity:
To accept and "TO DEAL WITH IT"
"COURAGE"
to accept as is is and deal with it NOT change other, but myself.