Let's study 1 st Corinthians 15, starting with verse 20.
People die with a natural body.
Then we can spiritually become one with Christ. But Christ has indeed been raised from the dead, the firstfruits of those who have fallen asleep. For as in Adam all die, so in Christ all will be made alive. So will it be with the resurrection of the dead. If there is a natural body, there is also a spiritual body.