To A Lady Sleeping

O Thou whose fringed lids I gaze upon,
Through whose dim brain the winged dreams are borne,
Unroof the shrines of clearest vision,
In honour of the silverflecked morn:
Long hath the white wave of the virgin light
Driven back the billow of the dreamful dark.
Thou all unwittingly prolongest night,
Though long ago listening the poised lark,
With eyes dropt downward through the blue serene,
Over heaven's parapets the angels lean.