Physical energy manifests in the positive timespace frame, is electrical in nature, and has positive mass. It travels slower than the speed of light and gives rise to gravity. This means that you can see it. Subtle energy, however, occupies the next timespace frame (or other timespace frames), manifests in the negative timespace frame and has negative mass. It is magnetic in nature and travels faster than the speed of light. It gives rise to what some call levitational force. This means that you can’t see it—but can note its seemingly paranormal effects.
—George Vithoulkas, The Science of Homeopathy
(via The Subtle Body: An Encyclopedia of Your Energetic Anatomy)
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