Actually, you've already lived through one! Usually, the question, inspired by fear, gets poised something like this, "Are you ready? Because if you're not, you'll be in trouble because it's coming!" But the apocalypse, as Paul reminds us in 1 Corinthians 15:20-28, is about God rescuing a hopeless humanity. Instead of bringing death, God will do away with death. The apocalypse is about God's love for your triumphing over all your darkness. Jesus' rescue of your heart was an apocalypse that has already happened. This is why you can say you have lived through God's apocalypse. Or rather, you have been made alive because of it.