Sin and retribution (yeah, yeah, I get ya, still smut)

With Eve's inner walls tightening around my penis, I couldn't hold on for even a second longer. Moving my hands up a bit, I wrapped them around her waists, with the intention of slamming her down as hard as I could to make this moment of release even more intense for the two of us… And then, I realised one thing.

If magical energy and entropy were two opposite sides of energy state for the universal void, what was with the ying and yang that was so commonly referred to in cultivation? What if it was nothing more but a certain attribute of the energy? What if all the grand theories that cultivation theoretics created, was nothing more than an attempt to find a way to explain a natural phenomenon that was too hard for them to comprehend in a way that would allow them to build on it?