USBN #212 October 1948 p1
" . . . He is indeed pleased to know that the book of Prayers and Meditations by Baha'u'llah has been out in time to enable the fr?ends to read it during the Fast, and he has every hope that the perusal of such a precious volume will help to deepen, more than any other publication, the spirit of devotion and faith in the friends, and thus charge them with all the spiritual power they require for the accomplishment of their tremendous duties towards the Cause .... "
(From a letter from Shoghi Effendi to Miss Jessie Revell of Philadelphia in answer to a letter she wrote him thanking him for the book Prayers and Meditations).