Applying this to the Christian life is simple. I learn to trust Christ everyday, even with the simple things, so that when I am "blindsided" my "faith muscle memory" takes over and I still trust Christ. His Word and promises are still true no manner the circumstances. The only problem is we never "practice" our faith enough to gain the memory that it needs and when the difficult times come it our life we either begin to doubt or place our trust in something else besides Christ.
So my advice today is to get out and practice your faith! Trust Christ with everyday-especially the good ones- so that when the tough ones come along you are prepared to trust Him as well.