Most of the time when I think of sunsets, its when I am looking at them; but this picture shows a different perspective. In this picture, the sunset is emphasized by its reflection from a distant mountain peak and the coming darkness is in the forefront. The light that is nearby enhances the memory and not the vision. Paul must have felt something like that when he wrote his final letter to his protege Timothy.
2 Timothy 4:1-8 WEB (R)
(1) I command you therefore before God and the Lord Jesus Christ, who will judge the living and the dead at his appearing and his Kingdom:
(2) preach the word; be urgent in season and out of season; reprove, rebuke, and exhort, with all patience and teaching.
(3) For the time will come when they will not listen to the sound doctrine, but, having itching ears, will heap up for themselves teachers after their own lusts;
(4) and will turn away their ears from the truth, and turn aside to fables.
(5) But you be sober in all things, suffer hardship, do the work of an evangelist, and fulfill your ministry.
(6) For I am already being offered, and the time of my departure has come.
(7) I have fought the good fight. I have finished the course. I have kept the faith.
(8) From now on, there is stored up for me the crown of righteousness, which the Lord, the righteous judge, will give to me on that day; and not to me only, but also to all those who have loved his appearing.
Paul left behind encouraging words to timothy to continue in his work because he knew he didn't have much time left in this world. The apostle wasn't looking forward to darkness but rather a revelation of reward for his love and faithfulness to God. And the sunset he saw may have been a sunset, but to him it was a type of SUNRISE, because the blessing of God's gift of righteousness was about to be revealed to him IN-PERSON. When a sunset is a prelude to heaven it becomes something more than a sunset; it is a gateway to the very presence of God himself. And that would make even this marvelous picture pale in comparison.