Haurietis Aquas §17

¹⁷ Through the years of Our pontificate--years filled not only with bitter hardships but also with ineffable consolations these effects have not diminished in number or power or beauty, but on the contrary have increased. Indeed, happily there has begun a variety of projects which are conducive to a rekindling of this devotion. We refer to the formation of cultural associations for the advancement of religion and of charitable works; publications setting forth the true historical, ascetical and mystical doctrine concerning this entire subject; pious works of atonement; and in particular those manifestations of most ardent piety which the Apostleship of Prayer has brought about, under whose auspices and direction local gatherings - families, colleges, institutions - and sometimes nations have been consecrated to the Sacred Heart of Jesus. To all these We have offered paternal congratulations on many occasions, whether in letters written on the subject, in personal addresses, or even in messages delivered over the radio.(12)