I think 'death' is a misnomer here. It doesn't kill it so much as force you to acknowledge and face it.

I'd say it 'dies' during the trip as it is ripped from you. In my experiences however it took quite a dose to achieve that.

To me the folks warning to be careful about stress and things you avoid facing when tripping hard are dead-on.

Mushrooms have a way of cleansing the mind and soul, but that's if you are lucky,and you'd best be ready for it.

Usually it's just some cool visuals and good feelings.