Bob Marley was all about Positive Vibrations but I think I know where his inspiration was coming from...
I don't think anything can be all good or bad. Earthquakes for example, aren't inherently bad, they occur when rock underground suddenly breaks along a fault and the sudden release of energy creates seismic waves that make the ground shake. However the effects it can have on people's lives can be devastatingly bad. On a minor personal scale, in all kinds of relationships from an acquaintance level to a family level I have experienced good vibrations turn to bad and vice versa. These kind of vibrations change all the time according to mood, circumstance and perspective.
