Watch the flow of water when it floods an area of land and you will see that it puts out fingers, and some of them stop because they come to blind alleys. But the water doesn’t pursue that course; it simply finds its way around. The water never uses any effort, however, only its weight and gravity, and following its level it finds the path of least resistance.
Suppose the water, when it reaches a place where a finger of water stretches out over dry ground and doesn’t got further, were to say to itself, “I failed!” Why, we would say it was just being neurotic. “Just Wait” we would advise and you will find the way to get through.