On the fourth book of The Faerie Queene, Scudamour passes a restless night in the house of Care,
… a blacksmith by his trade,
That neither day nor night from working spared,
But to small purpose yron wedges made:
Those be unquiet thoughts, that carefull minds invade.
The smith is assisted by ‘sixe strong groomes’ who keep the visitor awake most of the evening with the din of their
… huge great hammers, that did never rest From heaping stroakes… .
When the knight finally falls asleep, Care awakens him with a pair of red-hot tongs.
That this episode ‘symbolizes Scudamour's jealous wretchedness’ is, as Lemmi observed, perfectly obvious. Indeed Spenser has made the meaning of his ‘darke conceit’ extremely clear.