Spring is cold and warm.

The next sentence of this sentence is "Everything revives and plants sprout".

It describes the scene that the weather has just warmed up in spring, everything begins to recover and plants begin to sprout and grow. It expresses the vitality and hope brought by spring, and the recovery and rebirth of nature after the cold winter.

This poem can also be used to describe people's rejuvenating and meeting new challenges and opportunities after experiencing difficulties or setbacks.