In fact, Yeats sees his poems as a kind of summoning of spirits or evocation of spirits, as he refers to it.

实际上，叶芝认为他的诗歌,如他所说在召集传唤灵魂。

耶鲁公开课 - 现代诗歌课程节选

We have to pair that with that other evocation of the landscape to see this alternate idea, that actually this distanced criss-crossing of the landscape could be damaging. Think of those other violent knight's moves, like skipping past the mother's death.

我们得把关于风景的另一个回忆组成一对去理解,这个额外的想法，这个疏远的,十字纵横的景色描写可能是毁坏性的，想想其他的暴力的,迂回前进，比如跳过母亲死亡的方式。

耶鲁公开课 - 1945年后的美国小说课程节选