Putting on priestly vestments was once accompanied by prayers that helped us understand better each single element of the priestly ministry.
Let us start with the amice. In the past — and in monastic orders still today — it was first placed on the head as a sort of hood, thus becoming a symbol of the discipline of the senses and of thought necessary for a proper celebration of Holy Mass. My thoughts must not wander here and there due to the anxieties and expectations of my daily life; my senses must not be attracted by what there, inside the church, might accidentally captivate the eyes and ears. My heart must open itself docilely to the Word of God and be recollected in the prayer of the Church, so that my thoughts may receive their orientation from the words of the proclamation and of prayer. And the gaze of my eyes must be turned toward the Lord who is in our midst: this is what the ars celebrandi means: the proper way of celebrating.
If I am with the Lord, then, with my listening, speaking and acting, I will also draw people into communion with him.
The texts of the prayer expressed by the alb and the stole both move in the same direction. They call to mind the festive robes which the father gave to the prodigal son who had come home dirty, in rags.
When we approach the liturgy to act in the person of Christ, we all realize how distant we are from him; how much dirt there is in our lives. He alone can give us festive robes, can make us worthy to preside at his table, to be at his service.