This is a very serene game; music and images are beautiful. It has a very similar feel to Monument Valley, in many ways. It is a very simple puzzle-solving game, but more so than that it is a guided story.
The story is not always clear, and it has, in some places, a slightly unpolished feel to it. But, it gives you as many tries as you need to figure it out (if you look carefully and closely you will see the patterns you need to trace - just use your eyes), it's free, it is a small and simple game with no ads, IAP, or other distractions (not even settings), yet I was intrigued enough to see it through to the end.
If you're looking for a fast-paced action-packed game, this isn't it. If you like peaceful journeys that tell a story, however enigmatic or short, you have absolutely nothing to lose by downloading and trying this game.