William Wordsworth was inspired to write Lines Composed A Few Miles Above Tintern Abbey after"a long absence" of five years from the banks of the river Wye of which he has pleasant memories and it makes him feel "tranquil restoration." These memories have enabled him to manage the challenges of life as "the heavy and the weary weight / Of all this unintelligible world, Is lightened."
Wordsworth admits to having a more enlightened and philosophical approach to life than he used to and he cherishes this opportunity to spend time with his sister as "we stood together."
The term "unwearied in that service" refers to a tradesman, for example, who is "in service;" in other words, regarding his occupation in which he remains content never becoming bored or dissatisfied. In this context, as "A worshipper of Nature," Wordsworth will remain "Unwearied in that service" as he will never tire of the beauty and wonder of nature. Even the absence of five years cannot reduce its beauty or the importance of the place in his memory, made all the more exceptional by his sister's presence there .