Milton's blindness, the fact of his blindness, has shut out his view of the visible world, which would ordinarily present itself to him through the entrance of his eyes; and this shut-out will enable him, will help him, explore the invisible world of divine truth.

弥尔顿的失明，他失明的这个事实，遮住了,他看具体世界的目光，他通常是通过双眼,这个通道来看具体世界的，不过这种蒙蔽帮助了他，使他能够探索不可见世界中的神圣真理。

耶鲁公开课 - 弥尔顿课程节选