For the record: when I finally succeed in spending two weeks in darkness, here is one thing I predict will happen.
I will access the dreamworld and see the light that pervades it. This light is called superlight. I believe it may be the subtle kind of light perceived directly by the pineal gland.
If so, then, superlight is food for the soul, just as the gross light of this dimension (sun, fire, star, northern, electric, etc) is food for the mind. Superlight is what floods consciousness from the inside out in moments of rapture and realization.
It is the light most of us are starved for and seek to replicate with technology, movies, computer screens, light shows at concerts, etc. That we do not see much of it is not a spiritual or moral shortcoming, but a physiological malfunction resulting from psychic injury.
(I believe this injury, by the way, resulted from the shock of incarnation on this planet after leaving the dimension and place in which many of people here were proficient. Earth is a crash-and-burn/trial-and-error planet. This makes more sense if you read the myth of three cultures.)