Taiyang, Shen Jueyang, and the monkeys covered in dust and mud like them saw the golden light falling from the sky. The monkeys knew that the direction where the light was coming from was where their village was located and thought something was happening in their village while they were away.
Taiyang stopped one of them and said, "No. That's not an enemy. Not an enemy. It's a skill. No, a blessing. Yes! It's a blessing from the Moon Goddess. She is healing your kin!"
These monkeys are smart enough to understand Taiyang's words. Though they can converse in human language, at the very least they can understand it when spoken to them. Most monkeys in the group stopped running back to the village when they heard Taiyang's words.