We tend to see nature as a series of cycles. The seasons, the weather, even life... It is a normal part of Earth. Yet, we forget that nature is more superior than us and that it doesn't always stick to the "usual cycles"...
Is nature really understandable? Could it be controlled? The answer to both these questions is no. At any random moment, nature can choose an unexpected path. It has happened countless times in history and will happen again in the future. It cannot be controlled but it can be angered and once it becomes angry, It's wrath can cause complete devastation.
When we look at it from a differnt perspective, we can slowly understand that "there is nothing normal about nature" (Loren Eiseley). It causes evolution, it selects the worthy ones to survive and eliminates the rest. Even today, nature is still conducting thse tests.
We may believe that we can change it, control it and even use it for our benefit. But we should also know that nature isn't limited with our Earth. Her reaches are far greater than people expect. We must also remember that it isn't as simple or as normal as we believe it to be.