Philip Roth is Said to Have Said

That "the meaning of life is that it ends." 

This is not, I think, as cynical an assessment as first appears.  It simply reflects the bias of the novelist for narrative.  No one would read a story about a ride on a merry-go-round without end, because it would carry no meaning (except insofar as pointlessness itself can be made into meaning, as in the legend of Sisyphus).

Unfortunately, we can't experience the true meaning of our own narrative, because it isn't established until all contingencies are resolved at the instant of our death.