In the final part of Tintern Abbey, Wordsworth directly addresses his sister, Dorothy Wordsworth, expressing his hopes that she will continue to find joy and solace in nature, just as he once did. He sees in her a reflection of his younger self and encourages her to cherish nature’s beauty and wisdom. This passage highlights Wordsworth’s deep affection for his sister and his belief in the transformative power of nature, which he hopes will guide and comfort her throughout life.