Sonnet Clxxii: Poem by George Henry Boker

Within my mind I keep a holy plot,
Where such ideas as wear unsullied white
May move through scenes of ever-fresh delight,
Fringed to the pale with blue forget-me-not.
Within the boundaries of this virgin spot,
No thought o'ershadowed with the primal blight--
No worldly scheme, no falsehood, grave or light--
Can by indulgence or by force be got.
Here stands an image sacredly apart
From any contact, howsoever pure--
The cloister's goddess while the stars endure.
But why should I inform thee what thou art,
By any image, or by tropes assure