45 But the poor too, in their turn, while engaged, according to the laws of charity and justice, in acquiring the necessities of life and also in bettering their condition, should always remain "poor in spirit," and hold spiritual goods in higher esteem than earthly property and pleasures. Let them remember that the world will never be able to rid itself of misery, sorrow and tribulation, which are the portion even of those who seem most prosperous. Patience, therefore, is the need of all, that Christian patience which comforts the heart with the divine assurance of eternal happiness. "Be patient, therefore, brethren," we repeat with St. .lames, "until the coming of the Lord. Behold the husbandman waiteth for the precious fruit of the earth, patiently bearing until he receive the early and the later rain. Be you therefore also patient and strengthen your hearts, for the coming of the Lord is at hand." Only thus will be fulfilled the consoling promise of the Lord: "Blessed are the poor!" These words are no vain consolation, a promise as empty as those of the Communists. They are the words of life, pregnant with a sovereign reality. They are fully verified here on earth, as well as in eternity. Indeed, how many of the poor, in anticipation of the Kingdom of Heaven already proclaimed their own: "for yours is the Kingdom of Heaven," find in these words a happiness which so many of the wealthy, uneasy with their riches and ever thirsting for more, look for in vain!
Source: Divini Redemptoris (Vatican.va)