His thinking changed as his circumstances had changed. He might not get his job back, but he would most certainly move inexorably forward to something better. If the river stood still and failed to continue its course to the sea, it would become a menace to the health of the communities through which it passes. The fact that it moves continually is a sign of its healthful and life-giving waters. So it is with the physical, mental and spiritual life of humans.
Futile inactivity is stagnation.
Creative work and divine aspiration mean growth toward divine excellence. She misunderstands at first, thinking that Jesus is offering some kind of magical water. In time she comes to know that He is the Savior of the world, offering the spiritual water of new life to all people. This Rabbi was different. The woman went to a well to draw water, and Jesus asked her for a drink.