Mediaeval Baebes, The - Aria Song Lyrics

I have wist, sin I couthe meen,
That children hath by candle light
Her shadewe on the wal iseen,
And ronne therafter all the night.

Bisy aboute they han ben
To catchen it with all here might.
And whon they catchen
It best wolde wene,
Sonnest it shet out of her sight.

The shadowe catchen they ne might,
For no lines that they couthe lay.
This shadewe I may likne aright
To this world and yesterday.