[Heart]

hi
the key word you have is vibration, movement of energy within your own body, energy has a resonance frequency and those cirtain parts of the body you are experiencing them may be chakras or energy centers of the body.

I would recommend reserching chakras if your not familiar with them to see if they make sence to you and your experiences,

activating or energising any or all of these chakras will give you intense dreams. the trick is not to overly be concerned by them and to allow them to be expresssed unhindered and naturally, try to refrain from being forcefull in your understanding of how energy works in your body.