You may not know what you would say. But . . . You can know, because God loves you and has a purpose for your life. We receive eternal life as a free gift. We can live a full and meaningful life right now. We will spend eternity with Jesus in heaven.
Eternal life gives meaning to life.
Yet . . . Our sinful nature keeps us from fulfilling God's purpose for our lives. Thus . . . We are all sinners by nature and by choice. We cannot save ourselves.