It brings spiritual warfare and suffering for the priest as he identifies with those who suffer, and shares the frustrations, anger, and incomprehensibility of that suffering in what it does to those who suffer. The priest shares in these struggles of his suffering people, the uncertainties it brings, the sense of divine abandonment it induces, and the loneliness caused.
The priest comes. . not as an obscurantist, but wearing the intelligible vestments of living faith, divine but positive, ministering in Word and Sacrament that which is humanity's hope and salvation, the divine energy in which he lives with Christ in the Father through the Holy Spirit, identified but not accommodated to the world Christ seeks to save.
The evil of the Church is the doing of Church work in a spirit of business, something to be got through. The only way to avoid this is for the priest to be instant in prayer. If he is not, he will lose that touch of the supernatural, without which he has no right to be a priest at all.
The priest is Christ's slave, and Christ himself took the form of a slave and became obedient to death. So the priest in serving human needs lives a Godward life, possessed by God and witnessing that only when lives are utterly possessed by God do they find their true freedom.