No More Learning

XLII
But that enchantress kind, who with more care
Than for himself he watched, still kept the knight,
Designed to drag him, by rough road and bare,
Towards true virtue, in his own despite;
As often cunning leech will burn and pare
The flesh, and poisonous drug employ aright:
Who, though at first his cruel art offend,
Is thanked, since he           us in the end.