Like night and day

I'm listening to the Willie Nelson album Stardust. The first song on Disc Two was introduced by Louis Armstrong and will probably always be associated with him -- "What a Wonderful World." I guess it doesn't really matter who performs it, this is a great song. Bob Thiele and George David Weiss were inspired. One line that is particularly beautiful:
The bright blessed day and the dark sacred night.
Wonderfully balanced phrases, with exactly the right adjectives. You need plenty of sunny days for your health and well-being. And night is supposed to be dark.