God’s own live with a glorious eternal future clearly in focus.
For to me to live is Christ, and to die is gain. But if I live in the flesh, this is the fruit of my labour: yet what I shall choose I wot not. For I am in a strait betwixt two, having a desire to depart, and to be with Christ; which is far better: (Philippians 1:21-23 KJV)
Paul did not lose focus upon Christ while imprisoned. In fact he seems to be even more narrowly focused upon the things of God while serving time prison at the hand of Nero in Rome. Paul concludes that living in Christ is good; but dying is even greater gain for a follower of Christ.
Living in this world is to live in a constant battle between the flesh and spirit. Man desires to follow the pull of the flesh but God living inside a person’s heart directs him to live in a godly manner after the Spirit of God. God has victory over the flesh and mankind can live according to that victory now rather than choosing to follow after the flesh.
Certainly for the Christian there is much more to be gained in death spiritually alive in the eternal realm with God than sojourning upon this dark and wicked earth. Man’s entrance into the eternal realm is according to His timing, not man’s timing.