“Paul, a bond-servant of Christ Jesus, called as an apostle”
-Romans 1:1
The divine and mystical realm is the realm of the Spirit. Consider the following: God is Spirit (John 4:24); the last Adam, who is Christ, became the life-giving Spirit (1 Cor. 15:45); he who is joined to the Lord is one spirit with Him (1 Cor. 6:17); and, the Lord is the Spirit (2 Cor. 3:17). To be in Christ is to be in the Spirit and in the divine and mystical realm.
Adapted from Romans: The Gospel of God, by Titus Chu; Volume 1, page 38