Hi guys I need help on this question please how does the repetition of the phrase only my heart my heart is lonely contribute to the poem's theme?

If you’re looking for a place to visit, i recommend yosemite national park. visiting yosemite has been a high point of my life. can you imagine waking up, inhaling the pine-scented air, and watching the pink-tinted mountains reflect the sunrise? later, as you hike, you’ll encounter meadows strewn with rainbows of wildflowers and lakes in astonishing shades of blue. the tone of the passage is effective because it defines yosemite for the reader. the author entertain the reader. instructs the reader on how to enjoy yosemite. supports the author’s attempt to persuade.