Few poems stage a philosophical quarrel as a three-act play with talking trees, but that is exactly the game here. An oak lectures a willow for being impractical; the willow answers with a defiance that slowly curdles into doubt; and by the end the argument has turned from the grove's opinion of the willow into the willow's uncertainty about itself. What looks like a comic skit about vegetable bureaucracy becomes a small drama about the dreamer's position in a world that prizes usefulness.
The oak's speech is a masterpiece of petty officialdom. He wants to know which raindrops the willow can "classify" and how many kinds of dung it can "identify," and the repeated rhyme in "classify," "sky" and "identify" makes the interrogation sound like a drill. His idea of reality is "honest mold, / Gall, mildew," the unglamorous stuff of a tree's daily life. Against this, the willow's sin is that it blossoms "when you feel like blossoming, / In a blasphemingly eternal spring." The oak's vocabulary is institutional: "sabotage," "the grove agrees," "Woodlore Test," and even the pun "bear it oakly." The threat at the end, that the beaver-foreman needs "just one more trunk to mend his dams," shows the real engine of conformity: usefulness to the work crew. Worship of "God, the Weather" is simply deference to whatever forces rule the grove.
Act II answers in a different register. Where the oak speaks in tidy rhymed pentameter, the willow's lines loosen, and its first words, "Mad? No, I'm madness maddened / (—into truth)," set the pattern for the rest of the poem: assertion followed by a parenthetical second thought. Its defense is that its stillness is hidden activity: a "humming in my sap," "cascades more lyrical than any lark." The sound imagery is lavish, with "velvet bells" that "peal / Earthquakes far-off," so that the willow becomes a kind of seismograph of distant passion. Yet the speech ends on a genuine question, not a victory: "am I / The echo or the strummer of earth's tunes?" That broken line, with its dangling "through?" and "through? / am I," enacts the confusion it describes. The willow cannot tell whether feeling comes from outside or inside, whether the artist receives the world or makes it.
The stage directions are a clever device. The "thunder offstage; crash" marks the oak's fall, the storm proving the oak's own test wrong, as the willow predicted. In Act III beavers in overalls drag the felled oak away while the stage floor is a "planetary globe" and the sky a single "arched blue leaf." The comedy never fully disappears, but it turns bittersweet. The willow wins the argument and loses its certainty. "Alone less sure of answers than at war," it says, which may be the poem's saddest and most honest line: opposition gave it a clear identity, and now without an enemy it must face its own questions.
The last act's imagery is the most compressed and the most interesting. The world is "a burr / I'm stuck to," a clinging, irritating thing, and "certainty's a rock / Too lichen-slippery for a root's attack." That is a fine reversal: the oak's solid, earthbound knowledge turns out to be harder to grip than the willow's airy uncertainty. The blue leaf that "mocks" the willow is a wonderfully odd sky, both a "big mask" over some truth and a reminder of how small and artificial the willow's frame of reference is. The ending refuses both surrender and triumph. The willow will "know answers when it falls," but meanwhile it is "burnt by snow and drunk on drouth," extremes chosen over compromise, and it serves "the inner Weather of my core." Having rejected the grove's God, the willow does not abandon belief; it relocates it inward.
The poem's title promises that the "slacker" need not apologize, and the willow indeed never does. But the poem is more generous than its title: it lets the apology be unnecessary without making the dreamer's life easy. That mixture of wit, theatrical play and real uncertainty is what makes the poem worth reading closely.