A path to enlightenment. Many individuals seek the road of Monagan Bagen to clear their conscience and restore a balance to their soul. A monagan bagen, in a sense, is the real Holy Grail. Many people believe that it grants immortality when really it grants you passage to Heaven when you die.
Indiana Jones was seeking the Holy Grail in Indiana Jones and the Last Crusade but the truth was he found the Monagan Bagen.