I'd listen to this song while ctb'ing:
My interpretation of it is that there's what sounds like a baby crying (someone who's just entered life) and an ambulance siren (for someone who's just exited life)...if I was looking over my life the first question I would ask would by ``why?'' Why did small things x, y, and z happen that dramatically altered my life (both good and bad)? The main lyrics ``don't ask my why'' tell us there's no explanation, so don't ask--things happen for no reason. For some reason, I find this thought comforting, that there's no explanation and no reason for why things happen to us -- they're just random, and there's no deeper reason that we might search for.
It's as if someone has just died, and they're expecting to find out some deep underlying plan/set of reasons for seemingly-random stuff that happened to them.....and they find out there is none...don't ask me why. :) The message and melody are very calming and reassuring...
I also find that the picture of an old-timey small rocky mountain town adds to the feelings of calming, of comfort and of contemplation...and I feel like the voice in the background at around 3:26 that sounds like it is saying ``...no matter what'' is comforting..
Hopefully this wasn't too rambling and pretentious lmao.