Oh deer, I love this so much! It's incredible how well you managed to convey that description through this song, it's really done so well. I like that it really has that chill and tranquil atmosphere, as opposed to the jolly mood people tend to associate with christmas. Those whispers really add something... Nordic? to the track, which fits the theme of a mysterious reindeer of light incredibly well. And that melody starting at 1:35 makes the perfect resolution to that strange encounter.
What can I say, I am genuinely amazed. I will definitely come back to this track for many months to come, either for general listening or for inspiration... Thank you so much, 3MP, and happy holidays! ^^