I need everyone's honest feedback....why do people send inspirational messages..how does it show bondingness?

Can hardly speak for everyone, but as caring individuals we tend to do just that- care. So as a rule, the positive caring we get, i.e. inspirational, uplifting, comedic, etc., tends to help us feel not only cared about, but remembered as close whether by experiences, relationships, family, or otherwise. Or of course it could just be someone pressing a 'forward' link in an e-mail automatically, robotic, impersonal, unoriginal, harmless really but kind of droll.