It gathers in its riches that it may pour them out again to fertilize the Jordan plain. But the Dead Sea with the same water makes horror. For the Dead Sea has no outlet. It gets to keep. We inhale oxygen and exhale carbon dioxide.
Plants absorb the carbon dioxide and release oxygen.
The cycle is complete. This connection between giving and receiving is fundamental to life. What is waste to animals is essential to plants, and vice versa. Our own taking from and giving to life is just as intimately connected. We seem to be students of those who know more than we do, doers with those who know just about as much as we do, and teachers of those who know less than we do.