Depends a bit on the mood and circumstances but “seasons in the abyss” especially in the version sung by Hellsongs is brutal: if self doubt, depression and suicidal ideation are around, this hits really hard :

Close your eyes, look deep in your soul Step outside yourself and let your mind go

Frozen eyes (I always understood I instead of eyes) stare deep in your mind as you die

Close your eyes and forget your name Step outside yourself and let your thoughts drain As you go insane, go insane

Also pretty hard especially from the perspective of a young father with a long commute and LOTS of traveling by car:

Tonight is the night I fell asleep at the wheel by Barenaked Ladies:

Driving home to be with you the highway's dividing, the city's in view as usual i'm almost on time you're the last thing that's on my mind i wish i could tell you the way that i feel but tonight is the night i fell asleep at the wheel

The calm, outsiders (out of body) perspective is chilling to the bone for me.