Stop the wave and matter vanishes. Having no real substances matter cannot be separated from space itself. Like the ripples on a pond of water. The ripples do not exist apart from the water. When the ripples cease, the water returns to it's quiet state once again.
Vibration is energy.
When space vibrates matter appears. When space is quiet matter vanishes. Twist a three dimensional wave form and you have a vortex. In a vortex you have both spin and compression or rotation and gravity. Planets and stars are the results of twisted electromagnetic fields forming vortex fields.