To those that are in right standing with God; the first death at the end of natural life is a temporary sleep before being resurrected into a new spiritual body. Those who have died are not even aware of death; the dead do not know they are dead; their cycle of awareness is over. God explains that the natural life of the unsaved as being little different than being dead. We are encouraged to make wise choices before our time runs out (not just leaving it to the last moment). No one knows how long they have to live. For those of us who have the Holy Spirit, we are encouraged to keep our perspective and be mindful for the lives of others.