"The afternoon sun was hot on Martha's back, but not steadily so: she had become conscious of a pattern varying in impact some minutes ago, at the start of a telephone conversation that seemed as if it might very well go on for hours yet...
The window was two yards behind her, and it had a greenish "folkweave' curtain whose edge, or rather, the shadow of whose edge, chanced to strike Martha's shoulder and her hip. At first had chanced--Martha was now carefully maintaining an exact position. Areas of flesh glowed with chill, or tingled with it: behind heat, behind cold, was an interior glow, as if they were the same. Heat burned through the glass on the blade and buttock; the cool of the shadow burned too. But there was not only contrast between hot heat and hot chill (cold cold and hot cold?); there were subsidiary minor lines, felt as strokes of tepid sensation, where the shadow of the window frame cut diagonally." -the first page or so of Landlocked by Doris Lessing