The song is "I follow the Moon" by Malukah https://www.youtube.com/watch?v=hbDx2FVd9e0
This song helped me through one of the darkest points in my life. I had lost some friends and it felt like all the light in my life had gone out. I listened to this song as I looked to the Moon and saw that it was a waxing crescent. The Moon too had just been through its darkest point and the light existed only as a thin sliver. But this light would grow, as it has done many times before and will many times again. I looked back on how I've been through many bright and dark points like the Moon and that's how I knew I'd recover. Watching the Moon's light grow the following weeks brought me peace and hope. I'll always see the waxing crescent Moon as a reminder of hope and recovery