Like what the other commenter said, it is quite anxiety-inducing for a game that's supposed to be relaxing. Think it might be the crunch sound effect upon collision. I didn't really understand what the Ctrl/C "letting go of control" meant, did the dot just move faster and have a smaller collision box?
Also it does feel like the opposite of the theme, I felt like there was a lot that I as the player had to control rather than seeing things out of my control ^^;
That aside, the music and visuals are quite relaxing, love the story too.