The word "high" does a lot of quiet work in the first line of "Re-Entry." It can mean far up in the air, intoxicated, or lifted into abstract thought, and the poem never says which. The title helps without settling anything. Re-entry is what happens to a spacecraft returning through the atmosphere, but it also describes anyone coming back from somewhere intense into ordinary life. The poem is about a man, seen only through the speaker's impressions, who is descending from a state of mental altitude into a world of trees, paper and pencil. Its central idea is that coming back to earth is never as clean as it sounds. The return is felt and half-glimpsed, and it never quite finishes.
Notice how carefully the speaker hedges. "I get the feeling" opens both of the first two sentences, so what follows is intuition, not report. The first and third lines each run to ten syllables with a near-iambic walk, and they mirror each other: "very high" becomes "coming down." After that the poem loosens into short, uneven lines with no rhyme, as if the regular pulse of the opening were itself a kind of altitude. The line break in "coming down / slowly" is a small trick. The sentence drops to the next line, then lingers on "slowly," so the reader's eye descends at the same unhurried speed as the man.
The central image is the odd architecture of the second stanza. "His study / surrounds him" works on two levels, as the room where he works and as the act of studying that wraps around him like weather. Then comes the strange picture of "clear pine trees" that "pierce his glass-like palace." A palace made of glass suggests something transparent and fragile, perhaps the isolated, lofty life of a thinker. The pines are natural and vertical, and they pierce it. Yet nothing shatters. "Glass-like" is a hedge, since the palace only resembles glass, and "clear" lets the trees share that transparency, so forest and study seem to overlap rather than collide. The piercing sounds violent, but it reads more like the outside world quietly entering a mind that thought it was sealed off. The hard "p" sounds of "pine," "pierce" and "palace" add a pricking, needle-like edge to the line.
The portrait of the man at work is the most carefully balanced moment. "His form bent over / a manuscript; / his mind. / bent over a pencil." The parallel is exact: body and mind, manuscript and pencil. Yet the two halves are not equal. The body bends over the large, finished-looking thing, while the mind fixes on the tiny tool, a sharp point not unlike the pines. The punctuation, at least as printed here, adds to the effect. A full stop after "mind" cuts the sentence off before its verb arrives, and "bent" restarts in lower case after the pause. The grammar seems to stumble, as though the thought itself has landed hard. "Bent" also quietly carries a second sense of warped or strained, so this concentration may carry a cost.
Then the speaker's senses shift. The poem moves from feeling to seeing and finally to hearing: "I hear the parachute / but never see it fall." A parachute is meant to make a fall survivable, so it stands for a gentle, controlled descent. By the end that descent is registered only by sound, a rustle of cloth somewhere out of view. The final phrase can be read two ways. The parachute may fall, meaning collapse, once the landing is complete, and the speaker never witnesses that moment. Or the support that makes the descent bearable stays invisible. Either way, the poem refuses to show the touchdown, and the man stays suspended between sky and ground.
The poem is memorable for how much it leaves unsaid in so few lines. It never names the man, his work or the cause of his height, and it does not tell us whether the speaker is a stranger, a friend, or perhaps a part of himself looking on. What it offers is an exact sense of transition, a mind lowered gently into the physical world of pine needles, paper and graphite, and the suggestion that the lowering is something we can sense without ever watching it complete.