Thirteen words, and not one of them longer than a syllable. That is the first thing to notice about sage's «fatigue»: a poem about exhaustion that has itself been worn down to the bare minimum. There is no "I," no "my," no punctuation, not even a capital letter. The body parts arrive without an owner (sweat, hip, feet), as if tiredness has already removed the person and left only an inventory of parts.
The subject is easy to state and harder to shake: being so tired that you stop feeling like a body and start feeling like equipment. Each line announces a change using the same hinge, "turned to." Sweat becomes grease, hip becomes bone, feet become wheel. The central idea is that fatigue is not just a shortage of energy but a change of substance, in which something soft and living hardens and mechanizes.
The order of the images matters. Sweat is the body's own leaking, a sign of effort. Grease is also a slick liquid, but it belongs in an engine, applied to stop moving parts from seizing. So in the first line the body is already lubricating itself, acting as its own maintenance crew. The second line shifts from fluid to structure. A hip is a joint that depends on cushioning and movement, and "turned to bone" suggests that everything soft has gone, leaving a frame with no give in it. By the third line the change is complete. "Feet turned to wheel" is no longer a hardening but a replacement. Feet step, lift and land, while a wheel can only roll. Across the three lines the poem moves from a fluid to a frame to a mechanism, each stage further from anything human.
The verb works hard for its size. "Turned" means "changed into," but turning is also what a wheel does, so the word quietly predicts the final image before we reach it. The repeated "turned to" also acts as a refrain. The poem has no end rhyme, so this repetition supplies the pattern, and it is monotonous on purpose. The sameness of the grammar mimics the sameness of tired, repeated motion, one step after another with nothing to vary it.
The sound is carefully uneven. "Grease," "feet" and "wheel" share a long e, a thin, stretched vowel that falls at the ends of the first and last lines and in the middle of the last. "Bone," in the middle, has a rounder, duller vowel, like a thud. Because every word is a single syllable, the lines can't speed up. Reading aloud, you have to put weight on each one, and the slowness becomes part of the meaning. The third line adds an "and" and runs to five syllables where the others have four. That small extension feels like a list being closed, the last item dragged into place.
The title is never repeated in the body. The poem never says "tired"; it lets the symptoms speak. The word does have a second life in engineering, where "fatigue" describes the weakness that builds up in a material under repeated stress until it fails. We can't know whether sage had that in mind, but with grease and wheels already in the poem, the overlap is hard to ignore. The body is being treated like metal that has been loaded and reloaded too many times.
The tone also stays open. The poem never complains, and "wheel" is not purely a loss. A wheel is efficient, and it keeps going without feeling anything. One reading is depletion, a person reduced to parts. Another is a grim kind of endurance, in which numbness is what lets the body keep moving. The poem leaves both possible, and nothing in the text says whose body this is or why it is so tired. That blank lets any reader who has been worn out by work, sport or simply a long day recognize themselves.
That is where the poem's significance lies. In three short lines and no explanation, it turns an invisible feeling into something you can see and hear. And with no full stop at the end, the wheel is still turning.