2 That mirror (wherein the sick damsel
mirror > magic glass, crystal ball
3 So strangely viewed her strange lover's shade),
strange > {Foreign, not of this region} shade > spectre
4 To wit, the learned Merlin, well could tell
tell > [relate]
5 Under what coast of heaven the man did dwell,
coast > tract, region
6 And by what means his love might best be wrought: 7 For though beyond the African Ismael,
African Ismael > (The north African territories of the Arabs or of
Mohameddans generally, who were held to be descendants of
Ishmael)