Originally Posted by
Dazino
I don't believe that it is actually your physical body shaking; that would only happen if the kundalini energy was rising, and you'd be experiencing a lot more than just vibrations.
It is likely your energy body vibrating; it happens every time you have an OOBE (In my experience). This can often seem like your body is shaking, and when it gets really intense, it can feel like your body is twisting or changing shapes. It's all natural, nothing to be worried about. Simply a part of the procedure.
Continue with your practices, it seems you are doing well!