Frost is writing against the Romantic idea that poetry is written in repose, received passively as inspiration.

弗罗斯特不是浪漫主义这一派,浪漫主义是休闲时写的诗歌，被动地作为灵感接受。

耶鲁公开课 - 现代诗歌课程节选

By day I find no relief, nor repose by night.

我白天不能放松，晚上又不得安息。

耶鲁公开课 - 旧约导论课程节选