I used to talk with a Roman Catholic Priest at the Downtown YMCA in Houston between sets and in the locker room. He was a teacher at the University of St. Thomas. He said that if you pray and ask for God to Reveal Himself to you, he would. I have never done this, and I have to admit I have doubts, but I don't reject totally the possibility.
In high school the only individual who treated me as a person smashed his Mustang Mach 1 head on into a fully loaded concrete truck. Age 17 as opposed to 37, and thus took away my only human contact. I am still angered by it, and I have to admit if there is a Supreme Being, I am still angry at Him.
I have no definitive answers, but an interesting movie with this subject is "Amadeus". Many people miss the point of the film in that the movie is primarily about a guy (Salieri) who is SUPREMELY pissed off at God. I don't know if it will help you spiritually to watch it, but the music is calming and great.