法界次第初門 3.182

3.182

三、和適音。佛居中道之理，巧解從容，故所出音聲調和中適，能令聞者心皆和融，因聲會理，故名和適音。

3. The harmonious and pleasant voice: The Buddha abides in the principle of the Middle Way and is skillful and unconstrained in understanding; therefore, the sounds he emits are tuned in harmony and moderately balanced, able to cause the minds of those who hear them to be completely harmonious and blended, realizing the principle by means of the sound; hence it is called the harmonious and pleasant voice.