September 14

"If this feast be held in the proper fashion," ‘Abdu'l-Bahá states, "the friends will, once in nineteen days, find themselves spiritually restored, and endued with a power that is not of this world." To ensure this glorious outcome the concept of the Feast must be adequately understood by all the friends. 
- The Universal House of Justice  (From a message dated 27 August 1989 to the followers of Baha’u’llah)