Pale is the Heart

I can see why this is 'popular' -- one of the first things I noticed was the absence of a reference to 'Heart' in the poem itself, which I regard as a good strategy (not that you necessarily regard it in that light) -- it encourages the reader to connect elements in the body with the title. 'weight of winter' is a sublime opening, and I'm guessing that 'enfolding noise' was a frequently quoted 'favourite line' in comments.

One minor suggestion -- the first instance of self reference appears in the final line, another effective technique for concentrating the reader's attention on imagery before hitting them with a  'personal' significance. Do you need both 'I's in that line? The second reduces the impact of that reference for me.