Milton claims that he will one day use the English language to express what he calls "some graver subject," some more important subject matter, and he proceeds to characterize what that graver subject will look like.

弥尔顿声称有一天他将用英语,来表达他所谓的“一些严肃的主题“,还有一些更重要的主题，然后他继续描述这些严肃的主题都是什么样的。

耶鲁公开课 - 弥尔顿课程节选

Such where the deep transported mind may soar Above the wheeling poles, and at Heav'n's door Look in, and see each blissful Deity Now the graver subject that Milton is intending at some point to expound upon is clearly an epic one.

埋藏于心底的思想会,冲天而上并到达上帝的门前,往里一瞥你会看到每个快乐的神,现在弥尔顿正打算用更庄重的主题,详细点说就是史诗。

耶鲁公开课 - 弥尔顿课程节选