It is the initial indexing version of what we call Meta Tags, only all those intellects are still arguing over the 'proper' Dublin codes. Notice the capitals and plurals. Use these small techniques for huge results. Then when a search is for any combination of these words lowercase or upper, singular or plural, with pluses or without, you will come up first. I took great care choosing my actual domain name.
Numbers are the first language the computer learned.
Ask your Angels one question for free. New Tantra 101-sacred sexuality. Something in that description just might make a site reviewer curious enough to click on over. If you haven't submitted yet, research Yahoo submission for yourself, THEN call your local Yahoo and ask some deep question of a local Yahooligan. Most likely they just got off the phone with another irate site owner.