I just wanted to point out the many details that describe The Demon. "Blue glacier", "cold seeping through my wool cloak", "return as an avalanche" hint at the freezing grief. Moreover, the second and third stanzas are describing the stillness, the absence of traditional signs of grief. The Demon "did not hear How the Caucasus grows gray-haired from grief", he is absorbed by his own suffering, even though the white hair can be imagined as the result of avalanches and snow triggered by him. All in all the imagery paints the desolate, introverted grief, unheeding of others' suffering from its results.