Hilary Barrett:
"Brightness Hidden' also means 'Brightness Wounded'. Perhaps you have been injured; perhaps you fear injury. The name of Hexagram 36, ming yi, is translated as ‘brightness hidden’ or ‘brightness wounded’. The two ideas blend together in readings: the light is hidden away to escape the danger of injury.
Other titles: Darkening of the Light, The Symbol of the Appearance of Clear Intelligence Wounded, Injury, Wounding of the Bright, The Darkened Light, Injury of Illumination, Light Obliterated, Intelligence Unappreciated, The Dark Night of the Soul