Paul never conceives Christ Jesus in us in a material manner, a concrete, physical way of existing within us. He, in so many ways, leads us into the indwelling presence of Christ Jesus by maintaining always the “mystery” of God’s perfect love for us and our return of that love to God in and through Christ and the Holy Spirit. If we wish to enter into Paul’s mystical vision of our unity in love with the risen Lord, we must strenuously avoid any “objectification” of Christ’s union within us.
— George Maloney, SJ, The Mystery of Christ in You:
The Mystical Vision of Saint Paul