The short answer to the above question is: For the believer death has no pain to offer us, and the grave will never have victory over us. The death rate in this life is 100%. All who live will ultimately die, in the sense that our physical lives will end someday. Death in itself is often painful, and it seems very final. Death divides families and leaves the remaining living in despondence. For many, death represents the end of existence.
Believers certainly are not exempt from the death which will finally claim us all. Back in the Garden of Eden, the actions of Adam and Eve brought sin to creation, and death along with it. When Jesus died on that cross He paid the penalty for all of the sin of humankind; when He rose from that grave, he defeated sin and death both; however, there is a caveat to this. For those who reject what Jesus did, our sin and the resulting death will claim us forever. Even though Jesus has attained victory over both, those who reject will not participate in the victory, and sin and death will win. Is anything sadder than that?
For those who believe, however, physical death does not mark the end! Sin and death, and those who die in them will be cast into the lake of fire. Those who believe will “in a moment, in the twinkling of an eye,” be raised and changed forever. Is anything more joyous than that?