My experience with sleep paralysis and the associated vibrations was that the moment I saw them as opportunities to enter lucid dreaming rather than as objects of terror, they completely lost their terrifying aspect. I used to be terrified of them when I was younger. I would be dreaming, and suddenly the whole world felt out of joint, contmaminated by this evil presence that surrounded me. Then I read how this experience could be used to transition to an OBE or lucid dream state, and the terrifying aspect completely vanished. What I used to be terrified of is now my Holy Grail of the night.