Waves of pleasure
It was well into the night when Lex finished his cultivation session. His body felt slightly bloated, but that was excusable when one considered that he had basically absorbed a tub worth of tea into his body. Or, more specifically, he had absorbed the energy contained within that tea into his body.
The sense of bloating was both good and bad. It was good because it basically meant that Lex' estimate about using this particular tea was accurate, and all he needed to do was slightly reduce the amount of tea he used the next time.