this music is literally a journey, and i LOVE IT
the beginning serves as a littl foreshadowing to what is about to come, only to instantly change to something nice and chill, the repetition really helps with the feeling it gives by making it seem like a never ending journey, with some downsides here and there, but you keep going.
And then, 10:33 appears and makes you realise something is wrong, the chill atmosphere is mostly gone and all that is left is the flute and a few bizarre noises, eventually being developed through the way and suddenly after one very sudden machine-like sound, it's all gone...
Then, at 14:12, you come back to what you saw at the beginning, but you realise something is different as it goes for way longer than it originally went, and then you hear some type of melody (idk how to explain it) and finally, at 15:48 is probably my favourite part because it reminds me of the bgm in where's bill? by Sam Hogan and it really helps seal down the journey and put it into an end.
But WAIT, it's still not over, as the instruments and noises you were hearing through it come back to make a final apparition, and then it is over
This song is just so awesome i really can't explain it because i'm terrible at wording sooo
TL;DR: Had 20 minutes to spare, listened for 20 hours