Ray Bradbury: you have invaded my brain

Every winter of my life I think of a television film I once saw on PBS that I can barely remember, yet it haunts me. It is an adaptation of Ray Bradbury's "All Summer in a Day," in which a young girl living on Mars misses the few hours of sunshine a year because her playmates have locked her indoors and then been too dazzled by the light to remember she is trapped away from it.
This is how winter feels to me, like someone turned the contrast down on my world. My only question now is why must winter keep going on so long?