If you have some place with negative energy and another one with positive energy, can you use the difference to make the pair do some work? You know, like a voltage difference, potential energy difference, pressure difference, concentration difference etc.
Yes, and if you extract work from the system, what would happen to the positive and negative energies? Would they both come closer to zero, or would only one of them change?
I guess its a play on the fact that some people believe crystals having magical properties having healing energy etc. but in this case even if one does not believe in the crystal energy stuff the addition of the eyes makes it look so cute that it has the intended effect regardless.