The next day.
Sam still didn't get up from the spot and he has the heavenly wine gourd on the side.
He still kept on shifting the cube. But now his body is in partial shadow elemental fusion and his eyes are glowing with shadow energy as well.
He is using a variant of his energy vision. He enhanced it with shadow elemental energy so it would more sensitive to the shadow energy. Particularly the lump in the cube that is fluctuating with every change in the cube patterns.
Sam just turned the cube on a whim. He just observed the energy flow of the cube carefully with his energy vision. Soon he got a hang of this observation and also started to understand what the pattern on each section is doing when energy is flowing from inside of it.
He is currently looking at each section like an individual machine. A machine that gives out a certain output when the energy enters it in one state.