Wind, like starlight in the daytime, is an invisible thing. We cannot
see air, but we detect its effect as it blows over the mountain tops
both in the day and at night. I like to think we could see it -- and
in color as well. This night scene incorporated such a possibility.
Additionally, its mood is intended to be calming rather than agitating
or forceful. Possibly you can remember such a wind -- say on some 70
degree summer night. It would be about 10 miles per hour and "just
enough" to make the leaves rustle under the stars. This was the mood I
was looking for -- a calming one, at night.