It is a crime to put a Roman citizen in chains, it is an enormity to flog one, sheer murder to slay one: what, then, shall I say of crucifixion? It is impossible to find the word for such an abomination.
Everything has its price - and if that price is not paid, not that thing but something else is obtained... it is impossible to get anything without this price.
If every one said orders were impossible to carry out when they were received where would you be? Where would we all be if you just said, "Impossible," when orders came?
If you find a saint who has no sense of humour, then he is not a saint at all. Impossible. His very seriousness says that he has not achieved. Once you have some inner experiences of your own you become very playful, you become very innocent, childlike.