18 In addition, prayer will remove the fundamental cause of present day difficulties, which We have mentioned above, that is the insatiable greed for earthly goods. The man who prays looks above to the goods of heaven whereon he meditates and which he desires; his whole being is plunged in the contemplation of the marvelous order established by God, which knows not the frenzy of earthly successes nor the futile competitions of ever increasing speed; and thus automatically, as it were, will be re-established that equilibrium between work and rest, whose entire absence from society today is responsible for grave dangers to life physical, economic and moral. If, therefore, those, who through the excessive production of manufactured goods have fallen into unemployment and poverty, made up their minds to give the proper time to prayer, there is no doubt that work and production would soon be brought within reasonable limits, and that the conflict which now divides humanity into two great camps struggling for transient interests, would be changed into a noble and peaceful contest for goods heavenly and eternal.
Source: Caritate Christi Compulsi (Vatican.va)