"that gaudy painting The Light of the World"
'The Light of the World' by Holman Hunt
Public Domain'The Light of the World' by Holman Hunt - Credit: William Holman Hunt

 The Light of the World (1850s) is a very well-known painting by the Pre-Raphaelite artist William Holman Hunt.

It depicts Jesus knocking on a disused door with no handle, which Hunt said was symbolic of 'the obstinately shut mind'. 

The painting was the inspiration for an oratorio by Arthur Sullivan, written in 1873.