As to those that fall away from God, I wonder where it is they exist, those that are far removed from Him that is everywhere, and verily, O brothers, is it a wonder full of great trembling, one that requires the reasoning of an illumined mind,
in order properly to understand this thing and not to fall into heresy as a result of ignorance of the words of the Holy Ghost. They, too, will wholly have existence within the universe, but outside of the divine light and even outside of God.
For, just as those that cannot see the shining sun, although they are wholly bathed in its light, end their days outside of the light, severed from any sense or sight of it, so too in this universe is the divine light of the Trinity,
and in its midst the sinners that are enclosed in darkness, unseeing, bereft of any divine sense, but consumed and chastised by their conscience, will know for all eternity unspeakable affliction and ineffable pain.
St. Symeon the New Theologian, Hymns, I, 215-231
(English translation: Alistair Ian Blyth)