This article is essentially medieval, betraying no understanding whatsoever of any relevant facts pertaining to the subject matter. It could have been written by any literate person circa 1100CE.

Fortunately, we don't have ignorant superstition; we have scientific empiricism that gives us real reliably knowledge about the universe in which we exist. Although the author cites conservation of energy, the author clearly fails to understand anything about energy. Furthermore, the "soul" is merely a clumsy idea resulting from lack of knowledge about how the brain works and creates a transient illusion of persistence for our internal representation of ourselves and our interactions with the world around us.

As there is in fact no "soul" any more than there is "flame" (really the visible evidence of oxidization of carbon) we can answer the question "what happens after death." The answer is: the body decomposes. There is nothing else. No fairytale "soul" to go anywhere, and no "energy" that has to go somewhere. Learning some basic biology is Job One for anyone who aspires to write about this topic, rather than merely babbling obscurantist nonsense based on pure ignorance.