Do not ask a grasshopper to be a bear

Every person has his role in your scenes,
He comes in time just to do what he should,
And later we know what this sign means,
And why somebody hadn't done what he could.

We should not require for something more
Than he gives us, we should be glad with it,
As he must lead exactly to this door,
Another needs another creatures fit.

Don't ask grasshopper to be a bear,
A dolphin to be a flamingo-
You will more often live without despair...
You will go where you should go...