Josh Corey has been conducting an interesting improv on the differing time-effects in prose fiction & poetry. He suggests that good fiction involves an experience of "time-forgetting", whereas poetry always brings us up short with its focus on the fine grain of speech and language, the music of performance.

I've written some on this topic here at various times. What has struck me is that, while good storytelling does encourage us to lose ourselves in the story & forget time, nevertheless fiction tends to make time a theme of the story, so that the experience of reading it is double-edged : we lose ourselves (& time) in stories which describe the effects of time's power. The Odyssey and In Search of Lost Time are, I guess, the prime examples.

Poetry, on the other hand, does not simply intensify our experience of time : poetry changes the basic character of that experience. Prose may demolish our awareness of time; poetry seems to demolish time's very objectivity (as sequential, historical, impersonal phenomenon). Poetic time is a kind of performed Now, in which language spirals back reflexively on itself - and in the process, reshapes perception, knowledge, the sense of self and others.

I think it's worthwhile to emphasize these distinctions between the time-effects of prose fiction and poetry. And to repeat that the experience of a pleroma or a fulness of NOW (containing pasts and futures) - the recapturing and transmuting of past into present, chaos into order - is a theme of major narratives. Thus a notion of poetry is implicit or encrypted in the substance of fiction.