"Indeed, the chief reason for the evils now rampant in society is a lack of spirituality. The materialistic civilization of our age has so much absorbed the energy and interest of mankind, that people in general no longer feel the necessity of raising themselves above the forces and conditions of their daily material existence. There is not sufficient demand for things that we should call spiritual to differentiate them from the needs and requirements of our physical existence. The universal crisis affecting mankind is, therefore, essentially spiritual in its causes. The spirit of the age, taken on the whole, is irreligious. Man’s outlook upon life is too crude and materialistic to enable him to elevate himself into the higher realms of the spirit.
It is this condition, so sadly morbid, into which society has fallen, that religion seeks to improve and transform. For the core of religious faith is that mystic feeling that unites man with God. This state of spiritual communion can be brought about and maintained by means of meditation and prayer. And this is the reason why Bahá’u’lláh has so much stressed the importance of worship. It is not sufficient for a believer to merely accept and observe the teachings. He should, in addition, cultivate the sense of spirituality, which he can acquire chiefly by the means of prayer. The Bahá’í Faith, like all other Divine religions, is thus fundamentally mystic in character. Its chief goal is the development of the individual and society, through the acquisition of spiritual virtues and powers. It is the soul of man that has first to be fed. And this spiritual nourishment prayer can best provide. Laws and institutions, as viewed by Bahá’u’lláh, can become really effective only when our inner spiritual life has been perfected and transformed. Otherwise religion will degenerate into a mere organization, and become a dead thing.
The believers, particularly the young ones, should therefore fully realize the necessity of praying. For prayer is absolutely indispensable to their inner spiritual development, and this, already stated, is the very foundation and purpose of the Religion of God."
(From a letter dated 8 December 1935 written on behalf of Shoghi Effendi to an individual believer)