Practical reason provides justification for the universalistic and egalitarian concepts of morality and law which shapes the freedom of individual and interpersonal relations in a normatively plausible way. However, the decision to engage in action based on solidarity when faced with threats which can be averted only by collective efforts calls for more than insight into good reasons. Kant wanted to make good this weakness of rational morality through the assurances of his philosophy of religion. However this same strict rational morality explains why enlightened reason unavoidably loses its grip on the images, preserved by religion, of the moral whole-of the Kingdom of God on earth-as collectively binding ideas. At the same time, practical reason fails to fulfill its own vocation when it no longer has sufficient strength to awaken, and to keep awake, in the minds of secular subjects, an awareness of the violations of solidarity throughout the world, an awareness of what is missing, of what cries out to heaven.