Which song comforts you most?

Is there a song that you listen to no matter what mood you’re in, whether it’s happy, disappointed, enthusiastic, sad etc?

Songs that I have always loved are ‘Hold on’ by Michael Buble, ‘Hallelujah’ (Kurt Nilsons) and John Mayers ‘Gravity’. There are a ton more that I love but those few are my top.
I’d be interested to see which songs comforts you completely and brings your heart to peace :)