This is after she takes him to an "elfin grot" and tells him that she loves him true.
The author may have been inspired by Spenser's Florimel in writing this poem. In a letter to his brother George, the author explained why the original poem's 7th stanza contained four kisses, although in the published version it was changed to "so kiss'd to sleep," possibly at the suggestion of Leigh Hunt. The protagonist feels anguish even though the harvest is done and the granary is full, and awakens from a dream in which he sees "pale kings and princes too" exclaim that the title character has him in thrall.  This is after she takes him to an "elfin grot" and tells him that she loves him true. FTP, name this poem whose title figure is a magical seductress, which was written by John Keats.
The author may have been inspired by Spenser's Florimel in writing this poem.
"La Belle Dame Sans Merci"