What are the rhetorical devices in rainy season?

"Good rain knows the season, when spring comes."

Good rain knows the solar terms of rain, just when plants germinate and grow.

It means it rains in time.

This sentence is personified rhetoric.

Reason: Rain has no perception and consciousness, and it doesn't know the season. Here, rain is endowed with the perception and consciousness of knowing the seasons, just like knowing the solar terms. When plants grow most vigorously in spring, rain comes.

I hope you can understand this!