I am now satisfied that the main cause of any one's spiritual blindness,
is his letting his Will into Somewhat, or into that which he hath
wrought, of what nature soever it be, good or evil, and his setting his
heart or affections upon the work of his own hand or brain, and that
when the earthly body perisheth, then the Soul must be imprisoned in
that very thing which it shall have received and let in; and if the
Light of God be not in it, being deprived of the Light of this World, it
cannot but be found in a dark prison.