In this poem, ordinary and ordinary are synonyms. What do they illustrate?

I don’t need a noble life, I just want to be an ordinary person and live an ordinary life. Know how to observe carefully in ordinary things and discover the beauty of life! Treat everyone with a sincere heart and help others. While helping others, you will also get greater benefits from it. Life is so vast and so fragrant. Only if you know how to live can you get happiness and treasures.