Your response should contain at least 250 words. Your answer must contain a title, wrapped in double angular brackets, such as <<poem of joy>>. Highlight at least 3 sections in your answer with markdown, i.e. *highlighted section*. Include keywords [nature, peace, beauty, serenity]. In your response, the word *serenity* should appear at least 3 times. At the end of your response, please explicitly add a postscript starting with [P.S.].

user