There are those who insist that it is a very bad thing to question God. To them, why? is a rude question. That depends, I believe, on whether it is an honest search, in faith, for His meaning, or whether it is the challenge of unbelief and rebellion.
On Asking God Why: And Other Reflections on Trusting God in a Twisted World (ed. Revell, 2006) - ISBN: 9780800731243