I say the antagonist, because the devil is agaisnt the main protaginist.
Answer:
What can be done by you ?
Explanation:
Inferential would be the answer
Being free and able to do anything
Muir's writing is on both the beauty and harshness of nature. He talks about the beauty of the flower he discovered, but then talks about having to go without supper or blankets and how storms and the harsh weather conditions became welcomed after probably showing up a lot.