Because we might fall in l-o-o-o-ve. No, seriously, tell me a book! I'm 32 years old and have changed my position on many things in life -once a young redneck now a conservationist, once an atheist now a Pagan, once a republican now a constitutional monarchist - once I hated tomatoes, now I like them. Give me a chance Hawkikins! I would read it in a spirit of sceptical interest and feel obliged to be
fair because I am an Englishman (IRONY).
    Again you have based an argument on an assertion (that the spirit is a form of energy) that many would not agree with. Proof please! I think the spirit is a convenient word for the nexus of an individual's, thoughts, memory, experiences, beliefs and so on. "Proof please!" you reply - but I do not base an argument on MY assertion. Your 'great truth' is thus a matter of subjective opinion. Furthermore this assertion, unlike mine, contains an empirical claim, that spirit is a form of energy. In this case we should be able to measure it. Do you see what I am getting at?
As for the assertion that I am doing this for my own ego, you are quite right. I really enjoy this kind of argument - and am pleased that you are in it from an unselfish desire to bing others to The Light. However my motivation does not affect the relevance or otherwise of my arguments.