Harp an Bowl - its name derived from Revelation 5:8 - is a type of worship. It is music that is integrated into prayer, the "harp" representing the music and the "bowl" being representative the prayer of the saints (Christians) that are constantly going up like incense before the throne of God. In other words, prayer that is sung or spoken along with music. This type of worship is used in sustaining long periods of worship - for instance, the International House of Prayer in Kansas City has used this method of worship to sustain a prayer meeting since September 1999.