What does it mean to cool down without snow?

This sentence is based on Chairman Mao's "love that is not for the purpose of marriage is to beat Liu for self-protection". Most people who say this are children from the south. They especially want to see snow in winter, and they feel the hope of snow when they see it blowing to cool down, but they don't see snowflakes flying afterwards, so they think it is the purpose of blowing snow to cool down and there is no snow.

In fact, it doesn't mean much, just literally. There are many similar words, such as "xx is playing tricks on Liu without the purpose of xx" has become a popular sentence pattern, such as "posting without the purpose of building a crab club is playing tricks on Liu" and "posting without the purpose of love is playing hooligans".