In plain words
For the good of others all the trees give their fruit to others without eating them themselves, and offer sacrifice to the world. Though it holds as many fruits as it could want, a tree does not eat even one fruit. They give those fruits to birds and men and enjoy the joy of it. For the good of others the rivers flow. A river does not drink even a drop of itself. They use that water to grow the crops, quench the thirst of living beings, use it in many ways for the good of others, and in this way teach the ideal. For the good of others the cows turn their blood into milk, give nourishing food and offer an ideal life. If the trees and rivers did not take up such a life of sacrifice, human life would not last.
God: when one says God, where is God? Who is God? When we make that enquiry, Nature itself appears before us as God. It is a thing the students know well. The earth turns round itself at a speed of a thousand miles an hour. It does its duties with care. Not for one moment does it seek rest. Night and day come about through the earth turning in this way. It gives a duty to every being in this world. It gives rest. Besides turning round itself, it goes round the sun at sixty-six thousand miles an hour. Through this turning the seasons come. The clouds arise. In this way the sun, the moon and the rest teach man his duty. They teach that the power of action is most needed. Looked at in this way, the trees, rivers, animals and the earth teach man lessons in good qualities. The earth has no selfishness at all. If it did not do its duty, there would be no loss to it. Human life itself would waste away. If the earth did not go round the sun, human life itself would come to nothing. While the five elements make so great a sacrifice, what sacrifice is man making? Man enjoys the gladness, the joy and the comforts the five elements give, but he gives nothing back.
Man's cleverness is growing and growing. Vijñāna and prajñāna are increasing fast. But all these are taking shape as artificial kinds of learning. We are not trying to understand true education. We do nothing at all to show gratitude for what we have received through Nature. For man, gratitude is the chief thing of all. If we have no gratitude, we become lower than wild beasts.