The Teachings of the Faith place the “obligation of deepening in the Cause” on every believer

The beloved Guardian wrote, "To strive to obtain a more adequate understanding of the significance of Bahá'u'lláh's stupendous Revelation must, it is my unalterable conviction, remain the first obligation and the object of the constant endeavour of each one of its loyal adherents," a statement which places the obligation of deepening in the Cause firmly on every believer. (The Universal House of Justice, excerpt from a message dated Ridvan 1967, ‘Messages from the Universal House of Justice, 1963 to 1986’) (To read the entire letter please visit Messages to the Baha’i World Community—by the Universal House of Justice)