Translation of the Relics of St. Stephen:  after laying hidden for many years, St. Stephen appeared to a priest and promised healings which took place after they were unearthed.  This feast commemorates them being taken to Constantinople (by accident as the bones were thought to be of another person) with more miracles along the way.  Grace cannot be hidden.

http://oca.org/saints/lives/2015/08/02/102181-translation-of-the-relics-of-the-protomartyr-and-archdeacon-step

http://images.oca.org/icons/sm/august/0802stephen.jpg