in Thoreau’s Journal:

4 A. M. —It adds a charm, a dignity, a glory, to the earth to see the light of the moon reflected from her streams. There are but us three, the moon, the earth which wears this jewel (the moon’s reflection) in her crown, and myself. Now there has come round the Cliff (on which I sit), which faces the west, all unobserved and mingled with the dusky sky of night, a lighter and more ethereal living blue, whispering of the sun still far, far away, behind the horizon.

From the summit of our atmosphere, perchance, he may already be seen by soaring spirits that inhabit those thin upper regions, and they communicate the glorious intelligence to us lower ones. There real divine, the heavenly, blue, the Jove-containing air, it is, I see through this dusky lower stratum. The sun gilding the summits of the air. The broad artery of light flows overall the sky. Yet not without sadness and compassion I reflect that I shall not see the moon again in her glory. (Not far from four, still in the night, I heard a nighthawk squeak and boom, high in the air, as I sat on the Cliff. What is said about this being less of a night bird than the whip-poor-will is perhaps to be questioned. For neither do I remember to have heard the whip-poor-will sing at 12 o’clock, though I met one sitting and flying between two and three this morning. I believe that both may be heard at midnight, though very rarely.) Now at very earliest dawn the nighthawk booms and the whip-poor-will sings. Returning down the hill by the path to where the woods [are] cut off, I see the signs of the day, the morning red. There is the lurid morning star, soon to be blotted out by a cloud.