December 7

It is certain that man’s highest distinction is to be lowly before and obedient to his God; that his greatest glory, his most exalted rank and honor, depend on his close observance of the Divine commands and prohibitions. Religion is the light of the world, and the progress, achievement, and happiness of man result from obedience to the laws set down in the holy Books. Briefly, it is demonstrable that in this life, both outwardly and inwardly the mightiest of structures, the most solidly established, the most enduring, standing guard over the world, assuring both the spiritual and the material perfections of mankind, and protecting the happiness and the civilization of society—is religion. 
(‘Abdu’l-Baha, ‘The Secret of Divine Civilization’)