I want to be better at poetry than I am, but I am honestly terrible at it. However, Mary Oliver is extremely accessible to me and also feels like there is more I could tease out if I were Better At Poems. This page has a handful of hers and the first one is a really good example:

http://peacefulrivers.homestead.com/maryoliver.html

She also has several that are just super spot on about grief that I think you might respond to.