In her entry in “Endless Structures” in Structure & Surprise: Engaging Poetic Turns, Rachel Zucker references three poems that turn to sudden revelation near their conclusion. Here are links to those poems:
“Archaic Torso of Apollo,” by Rainer Maria Rilke
Here is Mark Doty on Rilke’s great poem.
“Lying in a Hammock at William Duffy’s Farm in Pine Island, Minnesota,” by James Wright
Other poems that feature a sudden, final revelation include:
“Body as Argument,” by Jillian Weise (in The Amputee’s Guide to Sex (Soft Skull, 2007), p. 81).
[...] Here are two student poems that ended up fitting the metaphor-to-meaning structure perfectly. Yet, even though these poems closely engage the structure, they do so in very different ways. With the metaphoric status of the blister(-as-poem) remaining a mystery until the end, Anjelica Rodriguez’s “Blister” makes a beautiful kind of surprising sense. However, the turn in Stephen Whitfield’s “Maturity” is more sudden, more shocking—it resonates with what Rachel Zucker calls the epiphanic structure. [...]