Just don't get it..

Ok, so I am totally new to blogging...Laugh if you want, but I just never saw the need or the attraction. Now that my circumstances have changed somewhat I suddenly feel the need to reach out. To who? I still don't understand how blogging works, so who is likely to read my blog? Why? Who cares? It all just seems so random... I'm not particularly interested in other people's blow by blow commentary of their latest pregnancy or   bowel movement, so why would people be interested in mine? I can's seem to figure out how to search for people who might be interesting, so right now I am confused as to the purpose of blogging. Do we all just have a narcissistic need to be heard, even if by complete strangers? Do we need some sort of existential realization that we matter? Are just desperate for a subjective interaction with something, someone, somewhere? Surely if the purpose of blogging is social, Facebook would suffice? Does the truth lie in a inherent need to either connect with people who share our ideals, or convert those who don't to our little corner of the playground... Its all just so random...