In October 2011, I gave a craft talk on "transitions" at Poets House in NYC. Here's a section they put up on You Tube, which looks at Czeslaw Milosz's poem "Winter." Apologies--there was a hand out with each of the poem's transitions marked, so this excerpt from the talk only indicates sketchily how they work in this poem.
Causes Jane Hirshfield Supports
International Campaign for Tibet