Hebrews 9

And as it is appointed for men to die once, but after this the judgment. v.27

Read chapter 9
You're going to die.  Fact of life since the fall of mankind.  All will die at least once.  Yet some, possibly many, will die a second death.  As our loved ones get old we know they're going to die soon, yet death is still hard though we know it's inevitable.  Those that believe in Jesus Christ as their Savior God will still die in this life, but they will be raised into eternal life.  Those that have rejected the salvation bringing message of Jesus (and only God knows) will raise to be judged and then face the second death.  Now what is the second death is not what I'm going to get in to in this devotion, but let me just say it's not eternal conscious torment as some imagine it to be.  
In the garden of Eden the curse for eating the forbidden fruit was that dying they would die. Adam and Even didn't drop dead there but death was working in them and has continued to work in every human since.  It was the curse no one could fix except Jesus' death that reversed it.  Yet that reversal doesn't take full fledge until He returns and brings His kingdom on earth.  So when a believer dies, he or she is dead.  They don't go on living somewhere else for then they are not truly dead and no point in the resurrection from the dead.  Yet if Jesus were to return today what about us who are living that haven't experience death?  Well 1 Corinthians 15:51 Paul has revealed a secret of God that not all shall die but be changed.  I always think experiencing being resurrected would be neat, but I gladly would love Jesus returning right now and seeing and experiencing my body changed in an instant.  How do you think and react about everyone dying once or possibly twice?