Good Vibrations?

[hotshotrobot]

I'm looking for opinions on what exactly the famed vibrations are thought to be caused by, and what exactly their general relevance is in the expanding of our consciousnesses.

I for instance have heard that they are an experiencing of vibrational energy that one possesses, which can be possessed in levels the higher the better for projection. I have also heard that they are a mere side-effect of becoming in tune with reality as energy, but are of no importance to what one can accomplish, and in fact some people project without having them at all!

Whaddya think?