Here a riddle has drawn a strange nailmark

Here a riddle has drawn a strange nailmark. To sleep now! I'll reread, understand with the light of the sun, But until I am wakened, to touch the beloved As I do has been given to none. How I touched you! So touched were you even by the copper Of my lips, as an audience is touched by a play, And the kiss was like summer; it lingered and lingered, Only later the thunderstorm came. And I drank in long draughts, like the birds, half-unconscious. The stars trickle slowly through the throat to the crop, While the nightingales roll up their eyes in a shudder From the firmament draining the night drop by drop.