William Cowper's speaker starts at the very bottom of creation. He is a "grovelling creature," a "worm," a piece of "clod" that "basely cleaved to earth." The verbs and nouns of the first stanza all press downward, and the speaker blames himself for it: he "wanted spirit to renounce" his earthly nature. The pun is hard to miss, since he lacks spirit in both the moral sense and the religious one. The rest of the poem is a rescue from that position, but its ending is more unsettled than a rescue story usually allows.
Cowper builds the poem on a vertical axis. After the low words of stanza one comes a burst of height: "from above," "wings," "fly," "top," "shining sky." The central image is a transformation. God "breathed upon a worm" and gave it wings, "the wings of joy and love." The change comes entirely as a gift. The worm does nothing to earn it, which is the point of the image. The speaker is carried up into confidence, and the verbs shift from the past tense of "I was" to the present of "I fly" and "stand."
The destination is Pisgah, the mountain from which, in the Bible, Moses was shown the Promised Land. Anyone who knows that story will hear a quiet caution in the choice. Pisgah is a place for looking, not for arriving. Cowper's speaker seems to feel this, because the stanza is all about seeing: he stands "to view" the land, and his claim stretches only "as far as faith can see." The language of stanza four sounds almost like a property deed, with its "vast domain," its "length and breadth," and a Lord who "has promised it to me." Hope here is a kind of legal certainty. The exclamation that follows, "How glorious is my privilege!", is the highest point of the poem.
Then the ground drops away. The speaker has been standing on a high place, and the fifth stanza makes him notice it: "I stand upon a mountain's edge." The mood changes in one line. God has been "the Lord" and "He" in the third person, but now the speaker turns and addresses him directly, "To Thee for help I call." The cry "O save me, lest I fall!" is the only moment of real panic in the poem. It carries the sense that the height which feels like glory is also dangerous.
That tension explains the title, "Lively Hope and Gracious Fear." The first four stanzas are hope, and the last two are fear. The final stanza joins them with a paradox: "Though much exalted in the Lord, / My strength is not my own; / Then let me tremble at His word, / And none shall cast me down." Trembling is what keeps the speaker upright. Confidence that forgets where its strength comes from is the thing most likely to fall, while humility and fear of the right kind make him secure. In the end the speaker has returned, in spirit, to the humility of the worm, though now with wings.
The form supports this. The poem is written in hymn stanzas, alternating lines of eight and six syllables, a pattern easy to sing and easy to remember. Most stanzas rhyme ABAB ("fly / stand / sky / land"), which gives the middle of the poem a steady, confident pace. Some rhymes are looser, though. "Worm" and "form," "privilege" and "edge," and "own" and "down" sit close without quite matching. Whether or not Cowper meant it, the near-rhymes in the stanzas about transformation and danger leave those stanzas slightly less settled than the neat rhymes of the view from Pisgah.
The poem's significance lies in that refusal of easy triumph. The plain, mostly one-syllable language would let a whole congregation sing it, yet the feeling it carries is complicated: joy that is real but borrowed, and a view of the promised land that is also a view of the drop. It suggests that faith involves both rising and looking down.