What qualities of nature are portrayed by Tennyson in the poem, "The Eagle"?

Nature is depicted as being quite beautiful due to the imagery Tennyson employs.  We can visualize a majestic eagle atop a "crag" -- a rocky and rugged mountaintop -- who is "Close to the sun" because he is up so very high in a cloudless sky that is described as an "azure world."  Then, the description of the "wrinkled sea" confirms the idea that the eagle is so high up that the sea's movements seem...

Nature is depicted as being quite beautiful due to the imagery Tennyson employs.  We can visualize a majestic eagle atop a "crag" -- a rocky and rugged mountaintop -- who is "Close to the sun" because he is up so very high in a cloudless sky that is described as an "azure world."  Then, the description of the "wrinkled sea" confirms the idea that the eagle is so high up that the sea's movements seem minuscule, like tiny wrinkles as seen from his "mountain walls" -- thus, there are many mountains around, and the sea, helping us to visualize the landscape further -- and we can see the bird's body streaking down, with such speed, when he strikes like a "thunderbolt."

Nature is also depicted as full of extremes: there's the very powerful eagle and the sea (or perhaps the fish in it), associated with powerlessness because of the verb "crawls." Moreover, a huge blanket of calm, uninterrupted sky blue lays atop a range of craggy, rocky mountains.  The peacefulness of the sky is also contrasted with the thunderbolt-like movements of the eagle when he dives.