It's about the untimely death of a poet.

它讲的是一个诗人的早逝。

耶鲁公开课 - 弥尔顿课程节选

Milton, who had died in 1674, had established himself as a great English poet within twenty or so years of his death.

弥尔顿死于1674年，死前花了20多年,奠定了他伟大英国诗人的地位。

耶鲁公开课 - 弥尔顿课程节选

The fact that the death here in Lycidas is the death of a young, virginal poet at the very outset of his career, as you can imagine, resonates in a lot of powerful ways.

利西达斯》中的死者是一个年轻，还未失童真，事业刚要起步的年轻人，可以想象，这与弥尔顿有很强烈的共鸣。

耶鲁公开课 - 弥尔顿课程节选

The poet of a pastoral elegy usually represents himself as a shepherd, a shepherd mourning the death of a fellow shepherd, and he often explains that the death of his shepherd friend is exerting a magical effect on the entire natural world.

田园挽歌诗人通常把自己写成一个牧羊人，哀悼自己的同伴的逝去，这个牧羊人常常描绘自己同伴的死,使整个自然界为之动容。

耶鲁公开课 - 弥尔顿课程节选