Hopkins is writing to his friend Robert Bridges about the mysterious, fleeting nature of poetic inspiration. He describes that first spark — a sudden, burning joy that fathers an idea — but it’s quenched almost as soon as it comes. What’s left is a long, patient pregnancy: the mind carries, shapes, and cares for the poem over years, like a mother who must go on after her insight has vanished. The speaker aches for that original rapture, the “one rapture of an inspiration,” and admits he doesn’t feel it now. Instead, he’s living in a winter world, barren of that bliss. If his recent lines seem flat, missing the old roll and song, he’s offering this very struggle as his explanation. The mood is tender, wistful, and quietly sad — a poet confessing that the fire he once knew has gone, and what remains is faithful labor, shadowed by sighs.
To R. B. — Summary
The fine delight that fathers thought; the strong Spur, live and lancing like the blowpipe flame, Breathes once and, quenchèd faster than it came, Leaves yet the mind a mother of immortal song. Nine months she then, nay years, nine years she long Within her wears, bears, cares and moulds the same: The widow of an insight lost she lives, with aim Now known and hand at work now never wrong. Sweet fire the sire of muse, my soul needs this; I want the one rapture of an inspiration. O then if in my lagging lines you miss The roll, the rise, the carol, the creation, My winter world, that scarcely breathes that bliss Now, yields you, with some sighs, our explanation.