Mutability by Percy Bysshe Shelley

Even though the poem begins pessimistically there is an ironic change in the way Shelley views mutability.
On one hand, because we as humans mutate and change we eventually, like clouds, disappear.
On the other hand, we are all individuals, even though we may be forgotten, we are unique. There is no replica.
Even when we rest (sleep) there is no constancy because of dreams. When we are awake, one thought leads to another, in this way our thoughts are always shifting. Each change in emotion signifies a shift.
Each day wears on and soon is replaced by the next.
The only thing that remains constant, as Plato said it a long time ago, is change.
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To A Mouse by Robert Burns

To A Mouse, emphasizes Burns as Romantic poet. A love for Nature is the defining element of all romantic poets.
Given Burns' miserable past, it is obvious that Burns' relates to the mouse' predicament. The industrial revolution took over agrarian life, affected peasants everywhere (inc. burns). Both the mouse and Burns are affected by hierarchy --where there is not much chance of rising up the social ladder. Both feel the pinch of inequality. Like the mouse, Burns' plans for the future have crashed. Even with the success of some of his poems, he returned to poverty after a tiny burst of good fortune.
At the same time, Burns says the mouse is better off than he is, solely because the mouse only knows of the present. Burns on the other hand has to deal with his miserable past of poverty, lost love, and drinking problem. His future was just as bleak as the mouse' except Burns. He was physically weak, and still very poor. He probably would not survive many winters.
It was only after his death that he won so much acclaim.
So, it can be said that "To a Mouse" does not only reflect Burns' compassion and sympathy for a homeless mouse, but his ability to associate himself with a lowly creature of the earth.
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The Clod and the Pebble by William Blake

Blake represents two different kinds of love in this poem. While the clod's love represents innocence and is altruistic in nature, the pebble's love is tainted by experience and is riddled with vanity and selfishness. The clod's love is probably Blake's idea of true love, love that is mature in its own way, love that finds pleasure in sacrificing its own comfort for its lover's happiness. On the other hand, the pebble's love is more superficial, and easily breakable. There is something cold about the 'experienced' love, which suggests that as one becomes older, and more materialistic, the innocent selflessness is replaced by a self-satisfying nature. The clod's heart is malleable, soft and open, whereas the pebble's heart is like stone, there is no room for change. The clod love is ruled by love for another person and the pebble's love by love for its self.
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This Lime-Tree Bower My Prison by Samuel Taylor Coleridge

This Lime- Tree Bower My Prison by Coleridge seems to show the maturity of a nature lover. From a man who wallows in self pity when his friends are out taking in nature to someone who says that nature is not restricted, Coleridge's marked change in attitude is amazing.
His tone is such that the reader finds himself relating to the poem. The poem is conversational.
The poem is a journey. A sequence of thoughts.
First, the poet is upset and indulges in hyperbole to highlight his self-pity.
Then, the poet slowly imagines what Charles and the others might be doing. His switch from self- pity to imagination brings a change in his pessimistic attitude. His imagination helps him recreate the journey for himself. Thus, he senses are awakened and he feels what he might have felt. His imagination takes him on the journey. He sees what Charles must have seen, feels what Charles must have felt, that reawakening of his senses make him slightly more optimistic.
He is then able to feel happy for his friend Charles. He realizes that Charles needed to experience nature. He needed the relief that the memory would bring him when in the city. Coleridge's finds happiness in his friend's joy.
Next, He realizes that even in the bower, nature expresses its self. The beauty of light reflecting itself on a leaf is enough to make him feel beyond the physical. He realizes that nature cannot be restricted. Nature cannot be confined to any one place. One can find nature everywhere.
In the end, Coleridge acknowledges the fact that for a true lover of nature, "no sound is dissonant which tells of Life". Even the croak of a rook is beauty for the true lover of nature. In this way, one only needs nature (which can be found anywhere) to be able to transcend one's self.
With this acknowledgment, comes a sense of enlightenment.
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