listener in this case is Wordsworth's sister Dorothy, who is addressed in the poem's final section. Transcending the nature poetry written before that date, it employs a much more intellectual and philosophical engagement with the subject that verges on pantheism. Outline of themes The poem's tripartite division encompasses a contextual scene-setting, a developing theorisation of the significance of his experience of the landscape, and a final confirmatory address to the implied listener. Lines 1–49 Revisiting the natural beauty of the Wye after five years fills the poet with a sense of "tranquil restoration". He recognises in the landscape something which had been so internalised as to become the basis for out of the body experience. Lines 49–111 In "thoughtless youth" the poet had rushed enthusiastically about the landscape and it is only now that he realises the power such scenery has continued to have upon him, even when not physically present there. He identifies in it "a sense sublime/ Of something far more deeply interfused,/ Whose dwelling is the light of setting suns" (lines 95–97) and the immanence of "A motion and a spirit, that impels/ All thinking things, all objects of all thought,/ And rolls through all things" (lines 100–103). With this insight he finds in nature "The anchor of my purest thoughts, the nurse,/ The guide, the guardian of my heart, and soul/ Of all my moral being" (lines 108–111). Lines 111–159 The third movement of the poem is addressed to his sister Dorothy, "my dearest Friend,/ My dear, dear Friend," as a sharer in this vision and in the conviction that "all which we behold is full of blessings". It is this that will continue to create a lasting bond between them. Literary and aesthetic context Having internalised the landscape, Wordsworth claimed now "to see into the life of things" (line 50) and, so enabled, to hear "oftentimes/ The still sad music of humanity" (92-3), but recent critics have used close readings of the poem to question such assertions. For example, Marjorie Levinson views him "as managing to see into the life of things only 'by narrowing and skewing his field of vision' and by excluding 'certain conflictual sights and meanings. Part of her contention was that he had suppressed mention of the heavy industrial activity in the area, although it has since been argued that the "wreaths of smoke", playfully interpreted by Wordsworth as possible evidence