This is and probably always will be my favorite song by Sia. It was also the first one I ever knew by her. I love Sia's voice. There's just something so raw and effortless and beautiful about it. I feel like this song perfectly captures all of that.
The instrumentals are simple with a beautiful piano line that is later joined by drums and violins and slowly builds up the emotion of the song. The piano alone can make me teary. To me, Sia's voice is the main focus of the song, which I absolutely love. Then the instrumentals have their own dramatic solo at the end. I just love everything about this song!
Also, this may be a weird thing to like, but I rather like the big sigh she takes at the very beginning of the song before she begins to sing.