Each thought that we have has a specific vibration. Happy or positive thoughts have a higher frequency while sad or negative thoughts have a lower frequency. We must be wary of this because the quality of our thoughts create a collective vibration. If our thoughts are mostly positive, our overall vibration is high. On the other hand, if most of our thoughts are negative, then our overall vibration is low.
Astral projection vibrations are actually a beginning clue that your astral self is about to leave your physical body plus go into your astral plane. Before you can begin an astral journey, you need to figure out how to reach the Vibration Condition. Astral individuals think astral projection vibrations are power waves that course through the entire body and exit with the top of your head.