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?
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.
The whole process of nature is an integrated process of immense complexity and it is really impossible to tell whether something that happens in it is good or bad. Because you never know what will be the consequences of the misfortune. Or, you never know what will be the consequences of good fortune.