The operations of heaven and earth proceed with the most admirable order, yet they never speak. The four seasons observe clear laws, but they do not discuss them. All of nature is regulated by exact principles, but it never explains them. Thus the perfect man does nothing...he merely contemplates the universe.
This seems to be a way of saying that the universe has a plan for us, and does not owe us the explaination of what that is. We should trust that everything is as it should be, which is harder than it sounds.