For 10 points, name this faith founded by Bahá'u'lláh, commonly represented by a nine-pointed star.
Because its leader wrote so many books, this faith's followers read a condensed work called Gleanings from the Writing of this faith's founder.  In that work, the author depicts world religions as different branches of a tree sprouted from the "seed of reality".  Members of this faith celebrate (*) Riḍván, a twelve day festival whose first, ninth, and twelfth days are considered holy.  Riḍván falls from April 21st to May 2nd on the Gregorian Calendar, but it falls from Jalál 13th to Jamál 5th on this faith's nineteen-month calendar.  For 10 points, name this faith founded by Bahá'u'lláh, commonly represented by a nine-pointed star.
Because its leader wrote so many books, this faith's followers read a condensed work called Gleanings from the Writing of this faith's founder.  
Bahá’í Faith