Being the Christ: Resurrection and Rebirth

Did the resurrection really happen?  Literally?  Whether it did nor not (spoiler alert—we’ll never know and perhaps it’s beside the point), what is the point?  What relevance does the story have for us today?  How can we “be reborn” after we are old?  Why should we?  Is there really always a second chance, no matter what has happened, what we have done?