14 It is at this point, therefore, that the problem of the Church's dialogue with the modern world arises. It will be for the Council to determine the extent and complexity of this problem and to do what it can to devise suitable methods for its solution. But the very need to solve it is felt by Us-and by you too, whose experience of the urgency of the problem is no less than Our own-as a responsibility, a stimulus, an inner urge about which We cannot remain silent. We have thought fit to put this important and complex matter before you in council, and we must do what we can to make ourselves better prepared for these discussions and deliberations.
Source: Ecclesiam Suam (Vatican.va)