"The meaning of life is to give life meaning" It is not life, that creates meaning. It is meaning, that creates life.
Therefore "The meaning of life, is to give life meaning" is most probably saying that
"nothing" didn't mean "anything", until there was "something",
"something" meant "nothing", until there was "anything", this all created "everything"
Don't look at it as if "life" is controlling word of the saying, it is "meaning" that has the true power.