On a May morwenynge on Malverne hilles
Me befel a ferly, of fairye me thogte.
I was wery for-wandred, and wente me to reste
Under a brood bank by a bournes syde,
And as I lay and lenede, and loked on the watres
I slombered into a slepying, it sweyed so murye.
Piers Plowman
William Langland