Castaneda is adept in talking about the "passage after". Our understanding of death, out of the context of a "psychedelic" experience, is hardly an imaginative affair. What we colloquially understand when using the term "death" is the final moments in the gradual deterioration of a living organism up to its point of expiration. The actual "passing" is merely a phase shift, a flicking of a switch. I am referring to this widely observable bit of the process. I call it "boring" because no matter how it transpires it will still culminate into the inevitable. What lies beyond, if any, may indeed not be boring. For now i will take yours and Castaneda's word for it. :)