An approach to this theme must be very tentative. Enormous shifts in emphasis and sense of direction are taking place in the Church today and it is not easy to see the effect they can have in fields of thought and action which have of late been less explored. It is strange that one of these should be the missionary field, but it seems true. The Council's preoccupations hitherto have been elsewhere. The outright rejection of the schema on the Missions in the third session was evidence not only of its own inadequacy but also of a possible general consciousness among the Fathers that this crucial subject had not yet been considered by them with requisite seriousness. The great project on The Church in the Modern World’ will obviously also be of the deepest significance for missionary thinking. To attempt any sort of a rounded statement on the subject at the moment would seem then to be out of the question. All one can do is to present some of the intellectual problems behind mission work today and also to gather together what new insights into the meaning and strategy of our work already published conciliar decrees and current theology can offer us.

Certainly mission thinking today must undergo a thorough renewal; our work cannot continue to be carried on with the attitudes and methods that have prevailed with relatively slight changes over the last century. Doubtless the need for this renovation has not been recognized as yet sufficiently or at a deep enough level by those engaged in the work.