Reflections at sunset can give rise to other geometric figures, in this case parallel lines.

Parallel Lines
Parallel lines also appear in the next two images but their titles are numbers only: 23790 of 23,879(1) and 23790 of 23,879(2).

23790 of 238791(1)

23790 of 238791(2)
Numbers unlock information if you know the key. In this case 23,879 describes the number of sunsets there had been to date in my life time, whilst 23790 represents the number of this particular sunset in the sequence. Artists sometimes use numbers to show how many prints there are in run. You are being offered a guarantee that the one you buy is from a limited edition, hence justifying the price. However, sunsets are free to anyone who takes the time to look, which is the “message” of the image.