That is what my Ustaz said. Well, not exactly. He was telling us a story when Nabi Isa A.S. saw a skeleton (or skull) and doa to Allah S.W.T. to resurrect the person. When the person was resurrected, Nabi Isa asked him about death and he told him that he was a king for 1000 years (or something like that) but when he died, everything that happened in his life felt like a mere dream. Now imagine, imagine that you're dead and going through what you'd done in your life. Then ask yourself questions eg. What have you done with your life? Have you always done the right things?