The poem is a bedside scene in which a woman speaks aloud to a patient who, for most of it, cannot hear her. The title points to a healing practice done with the hands, and the text bears this out: "My hand is on thy brow, / My spirit on thy brain," and "from my fingers flow / The powers of life." The central idea is the gap between comfort and cure. She can soothe, and she can lull him into sleep, but she cannot give him what he really lacks, and she is honest enough to say so.
That honesty arrives early, in the second stanza: "Sleep, sleep on! I love thee not." Her pity has a surprising source. She thinks of the man whose presence makes her own life "as full of flowers as thine of weeds," and imagines him suffering as the patient does, helped by "a hand which was not mine." Her care is a kind of repayment, kindness passed along in the hope that someone would do the same for the person she loves. The stanza closes on "my heart bleeds / For thine," a line where sympathy is real but plainly limited.
The form supports this. All five stanzas are nine lines long and follow the same rhyme pattern, ABACBDBCD. The last line is always tiny, and the first three stanzas end on "thine." The word shifts in meaning each time. In the first she "may not blend / With thine," where the line break itself keeps the two souls apart. In the second she bleeds "for thine," and in the third she "can never / Be thine." The repeated rhyme works like a door closing a little more firmly each time. The uneven line lengths, together with the chant of "Sleep, sleep on!" and the repeated "Forget," give the speech a hypnotic pulse, as though the verse were itself a pass of the hand.
Her list of things to forget shows what she thinks is wrong with him. It includes "the world's dull scorn," "lost health," and "the divine / Feelings which died in youth's brief morn." His real illness is a loss of feeling and hope, which no touch on the brow can reach. The line "Forget that thou must wake forever" is the most striking. Waking is imagined as an endless sentence, and the "slumber of / The dead and the unborn" is the only mercy she can offer.
The fourth stanza turns to nature. Her soul is "a cloud big with a May shower" and he is a "withered flower." The senses blur together in "mute music" and an "odour" that calms the brain, while light spreads "like a second youth again." It is a lovely image of renewal, but the last word is "Possessed." Healing has quietly become ownership, since his being is held "to its deep" by hers while he is helpless to object. Shelley lets the tenderness and the unease sit side by side.
Then the form breaks. In the final stanza quotation marks appear and the verse loosens into speech: "How feel you now?" / "Better--Quite well." The sleeper wakes and the monologue becomes a conversation. When she asks what would really help, he answers, "What would cure, that would kill me, Jane." Her name appears only here, at the very end, and it turns the anonymous healer into a particular person. It also rhymes with the poem's last words, "My chain." The poem never says what the cure is. It may be her love, or a release too final to name, and "chain" could mean the bond of life or a restraint he chooses to keep. What is clear is that he asks her not to tempt him, and that he will go on living "awhile" on earth.
That open ending is what gives the poem its weight. It treats care as limited but still worth giving, and it shows a refusal that is gentle on both sides. The healer cannot love him, and he cannot be cured by anything less.