She is undefined

Oh, how the sun shines brightly upon you!
And every shadow burns before your hue,
In dusk displayed you're a shimmering star,
And come daybreak you peer down from afar
You watch the little planets hum with verve;
Often days do I wonder and observe:
The solitude of the beautiful ones
That walk in light as if a thousand suns
Radiate a few hundred thousand rays,
What're you like after your elegant plays?
For there's no camera that could capture her,
She lives in fantasies I wish I were;
She is an emotion I cannot name,
She is a feeling I cannot explain.