Who wha?
Listening to your heart slow down while you’re trying to go to sleep is like a lullaby and metaphorically, you’re the baby in the cradle.
Listening to your heart slow down while you’re forcing your eyes open in the darkening cab of your car as gas leaks onto the pavement and you’re staring at the crushed remnants of the vehicle that destroyed the daylight is also like a lullaby and metaphorically, it’s for you whom the bell tolls.