The distinction I would draw is whether the content is published and accepted.  Wikipedia:No original research#What_is_excluded.3F gives a list of seven criteria for determining whether or not something is original research ... but really what it boils down to is whether or not you can find other secondary sources making the same claim.  I had never heard of this tomb before this evening so obviously I don't know enough about it to say what is and is not accepted science in this respect.  ;)  From what you are saying, it sounds like there are two questions - (1) is it appropriate to discuss the symbolism findings in the article and (2) if so, is it appropriate to cite your work.  In the case of the former, it depends on whether or not this has become an accepted finding.  Is it still a theory or has it gained acceptance?  Have other authors picked up on it and do they cite it as accepted truth or as a new theory?  The primary reason for the original research policy is that there are constantly new theories coming out about everything - Jimbo (the founder of Wikipedia) originally mentioned physics, but I think it applies to any field.  Some theories are good for a term paper or thesis and never see the light of day again.  Others become accepted truth over time.  Wikipedia is not the place for giving a sounding board to new ideas and theories - we wait until they are accepted.  The second question is whether, if this content is to be included, it would be appropriate to cite your book.  I believe, as I said before, that you (personally) should not add it, but should let someone else do it - that's just basic journalistic integrity - we as individual editors don't promote our own stuff.  Blogs are almost never considered appropriate ... so I really don't think having a link to your blog would be a good idea.  Sources on Wikipedia should be peer-reviewed journals, newspapers, etc, where more than one person is responsible for the content.  Blogs are generally a bad thing.  I hope all this helps ... I know I've rambled a bit. (As a quick side note, please sign messages on talk pages using four tildes - ~~~~ - it will automatically turn into a time/date stamp with your name ... it makes conversations easier to follow.)