I am like a river, I have nothing of my own. What I get I pass on, no less, no more.
If I river passes on more water than it gets from the mountains it become dry and shrivelled, if it gets too much or keeps too much without passing on the gift, it swells and become obnoxious and destructive. It can take pride in bringing life and prosperity to all around its path and yet, it does nothing more than pass on the gift of the mountains and the glaciers. If the mountains take pride in filling up the river with sparking cool waters, it really does nothing but pass on what it gets from the skies. If the skies where to swell on showering the mountains with pure white snow, they do it only because of the infinite depth of the bitter, salty waters of the seas which boil over and fills the skies and makes life possible for everyone.
As with a river, so also with life. We need to go with the flow. When we get a gift, it is impossible to repay the person who helped us, it might not even be appropriate. It would be like a river flowing backwards. It wouldn't set the flow in motion. Oftentimes the person who gives you a gift is because s/he already has a excess of the entity. The person providing us is not always the best recipient of our gifts. It would be counter to nature. It would probably make more sense if pass on the our gifts to someone else and set this flow of life in motion.