When your expectations are disappointed and life doesn't turn out like you thought it would, you can become disappointed and disillusioned. As aircraft pilots depend upon their navigational control systems to guide them through turbulence when things aren't visibly clear. So it is with life in general, when it becomes uncertain due to the lost of a loved one we need a navigational system to guide us. Faith serves as a dependable system to get us through those times when we don't understand which way to go.