Spring: as warm as spring breeze, used to describe love.

Awesome as frost: majestic as autumn frost (harsh)

This sentence is a description of the hero of this poem, with the nature of praise.

There are two interpretations of this sentence: one is to further strengthen the previous sentence, and the hero's policy of combining kindness with kindness is a good way for him to govern the country The other is that the hero not only has the political ability to bite the hand that feeds him, but also has a family-run recipe for governing the country.

These two poems are from Shi Shaosong in Song Dynasty.