…unless the brain doesn’t die as fast as we believe, and so you become ‘paralyzed’ in a sense, beyond revival but still very aware of your predicament for some time. They do call it ‘practicing’ medicine, and nobody has been able to un-die and tell us what the actual process is.
Imagine it being like sleep paralysis, until you decompose. Decaying in a buried box is the ‘good’ way.