The archbishop can wear the pallium, a garment worn by the Pope, and sent by him to patriarchs, primates, and archbishops. It is a band of white wool, worn over the shoulders and around the neck after the manner of a stole. It has two strings of the same material and four black or purple crosses worked upon it. It is the symbol of the plenitude of pastoral jurisdiction conferred by the Holy See. Morally speaking, it reminds the wearer how the good shepherd seeks the lost sheep and brings it home upon his shoulders, and how the loving pastor of souls should seek those spiritually lost and bring them back to the Church, the true fold of Christ. Lesson 26 ON MATRIMONY 282 Q. What is the Sacrament of Matrimony? A. The Sacrament of Matrimony is the Sacrament which unites a Christian man and woman in lawful marriage. "Christian," because if they are not Christians they do not receive the grace of the Sacrament. *283 Q. Can a Christian man and woman be united in lawful marriage in any other way than by the Sacrament of Matrimony? A. A Christian man and woman cannot be united in lawful marriage in any other way than by the Sacrament of Matrimony, because Christ raised marriage to the dignity of a Sacrament. "Lawful." Persons are lawfully married when they comply with all the laws of God and of the Church relating to marriage. To marry unlawfully is a mortal sin, in which the persons must remain till the sin is forgiven. "Sacrament." Before the coming of Our Lord persons were married as they are now, and even lawfully according to the laws of the Old Testament or old religion; but marriage did not give them any grace. Now it does give grace, because it is a Sacrament, and has been so since the time of Our Lord. Before His coming it was only a contract, and when He added grace to the contract it became a Sacrament. *284 Q. Can the bond of Christian marriage be dissolved by any human power? A. The bond of Christian marriage cannot be dissolved by any human power.