Is nature showing concern for us?

I'm fascinated by this argument:

"What I am saying is that whenever god provides people with the material for doing something spiritedly and courageously, he is showing concern for them, whom he desires to be as morally good as possible. This is something that requires events of a certain difficulty. It is in a storm that one may recognize a captain, in a battle line a soldier".

- Seneca, On Providence, 4.5

Evolution is to overcome challenges. I guess most people would agree on that. But very few people would probably agree that it follows from this that the challenges are a necessary part of evolution. Which is kind of strange - because, by definition, they are. And if they are does it then make sense to describe nature as benevolent in some sense? What do you think?