C1060 A Little Bit Better at Acting

The Heart Clearing Pill's effect was able to calm one's mind. In itself, it was not specifically used to ease the effects of the Xiao Yao Pill, but was used to purify one's inner state of mind and to prevent one's imagination.

It was also because he realized later on that Heart Clearing Pill had an extremely strong restraining effect on Xiao Yao Pill, that was why he was able to complement it