In this week's Torah portion of Vayishlach, Jacob has his name changed to Israel - the one who wrestles with God (sar el). The concept of God is a tricky concept. In my experience, I have found two main obstacles for someone having a relationship with G-O-D. The first obstacles are the classical images of God, and the second is the name itself. "To wrestle with, or doubt, God is perhaps the strongest form of faith." - Rabbi Misha Clebaner