My Pastor Message Today

I know my pastor is a good pastor, but today he talked about prayer and God answering prayer.  It was a good message, and I told him afterward it was good, but then from some of the things he said, I was going to have to ask myself then what did I do wrong.  All the things he talked about said Jesus said if you Ask you will receive, if you knock you shall find etc. etc.  I did those things for my son Kenny, yet I did not get the answer I asked for, so when I said to him it was a good message but I have to ask myself what did I do wrong, he said you didn't do anything wrong.  But if I read the Bible and believe what it says and I had the faith, then where did I go wrong.  Was there something in my life that I was doing wrong is why God did not answer my prayers.  Were my prayers selfish (I don't think so).  So if the Bible says I only have to have the faith of a mustard seed, and I had much more faith then that and I still do, then what went wrong.  Why did God not hear my cries, my prayers to heal my son.
I have not answers, as not one else does.  We only have our faith, We have God and We have our hope for our future with God and our children who have gone on ahead of us.  We have forever to look forward too..  What more than wanting our children back could we ask for.  If we trust and believe in God we do have hope for the future.
If only there were answers that made some sense.  I remember one day a months or so after Ken found out he had the cancer, he asked me Why,mom Why did this happen to me, I had no answer and I have no answer now, I just know I wish I had an answer.
Sandi