Vol. I of Ratzinger's collected works is all about liturgy

Sandro Magister, "In the 'Opera Omnia' of Ratzinger the Theologian, the Overture Is All about the Liturgy" (www.chiesa, October 29, 2008):

And Benedict XVI explains why, in the preface to the volume that he wanted to have published first. He recalls that this is how Vatican Council II began, too. By giving God first place. And about the direction to face in prayer, he writes...

Tantalizing, isn't it? Magister reports:

Last week, when the first volume of the "Opera Omnia" of Joseph Ratzinger was presented at the Vatican, one question naturally arose: why is it that the first volume printed, of the sixteen planned, is focused on the liturgy?

To answer this question, it is enough to read the preface that Benedict XVI wrote for the opening of the volume. There, the pope writes that the selection of the theme to begin with was entirely his own. And he explains why. In passages that are highly interesting, and sometimes surprising.

Indeed. In his Preface, the former Cardinal Ratzinger himself writes:

Unfortunately, almost all of the reviews of this have been directed at a single chapter: "The altar and the direction of liturgical prayer." Readers of these reviews must have received the impression that the entire work dealt only with the orientation of the celebration, and that its contents could be reduced to the desire to reintroduce the celebration of the Mass "with [the priest's] back turned to the people." In consideration of this misrepresentation, I thought for a moment about eliminating the chapter (just nine pages out of two hundred) in order to bring the discussion back to the real issue that interested me, and continues to interest me, in the book. It would have been much easier to do this because in the meantime, two excellent works had been published in which the question of the orientation of prayer in the Church during the first millennium is clarified in a persuasive manner. I think first of all of the important, brief book by Uwe Michael Lang "Turning Towards the Lord: Orientation in Liturgical Prayer" (Ignatius Press, San Francisco, 2004), and in a special way of the tremendous contribution by Stefan Heid, "Atteggiamento ed orientamento della preghiera nella prima epoca cristiana [Attitude and orientation of prayer in the early Christian era]" (in "Rivista d’Archeologia Cristiana" 72, 2006), in which the sources and bibliography on this question have been extensively illustrated and updated.

The result is entirely clear: the idea that the priest and people should look at each other in prayer emerged only in modern Christianity, and is completely foreign to ancient Christianity. Priest and people certainly do not pray to each other, but to the same Lord. So in prayer, they look in the same direction: either toward the East as the cosmic symbol of the Lord who is to come, or, where this is not possible, toward an image of Christ in the apse, toward a cross, or simply toward the sky, as the Lord did in his priestly prayer the evening before his Passion (John 17:1). Fortunately, the proposal that I made at the end of the chapter in question in my book is making headway: not to proceed with new transformations, but simply to place the cross at the center of the altar, so that both priest and faithful can look at it, in order to allow themselves to be drawn toward the Lord to whom all are praying together.

Of course, as far as Ratzinger is concerned, this is really only a sidenote to the main focus of his liturgical work, yet a very important note, and one which, even if it functions as a presupposition, is fundamental to his thought, and, in his view, to liturgy itself.