Karen Meyers's recent item at UFO Digest resonates with me. In Getting 'The Feeling' Meyers discusses that physical as well as psychological knowing, that awareness, that a UFO is near. Not only near, but calling you, in a sense. Something compels you to look out the window, or go outside and look up. A communication, both visceral and mental. I've had this happen to me on several occasions, and can't explain why it happens. I do know that it's a distinct and real sensation when it does happen.