At the beginning of Chapter VI, "Idealism," Emerson questions whether nature actually exists, whether God may have created it only as a perception in the human mind. Having stated that the response to this question makes no difference in the usefulness of nature as an aid to human comprehension of the universal, Emerson concludes that the answer is ultimately unknowable. Whether real or not, he perceives nature as an ideal. Even if nature is not real, natural and universal laws nevertheless apply. However, the common man's faith in the permanence of natural laws is threatened by any hint that nature may not be real. The senses and rational understanding contribute to the instinctive human tendency to regard nature as a reality. Men tend to view things as ultimates, not to look for a higher reality beyond them. But intuitive reason works against the unquestioned acceptance of concrete reality as the ultimate reality. Intuition counteracts sensory knowledge, and highlights our intellectual and spiritual separateness from nature. As the intuition is increasingly awakened, we begin to perceive nature differently, to see the whole, the "causes and spirits," instead of individual forms.
Emerson explores idealism at length. He first points out that a change in perspective is caused by changes in environment or mechanical alterations (such as viewing a familiar landscape from a moving railroad car), which heighten the sense of the difference between man and nature, the observer and the observed. Altered perspective imparts a feeling that there is something constant within man, even though the world around him changes, sometimes due to his own action upon it. Emerson then discusses the way in which the poet communicates his own power over nature. The poet sees nature as fluid and malleable, as raw material to shape to his own expressive purposes. Inspired by intuition and imagination, he enhances and reduces facets of nature according to his creative dictates. He provides an ideal interpretation of nature that is more real than concrete nature, as it exists independent of human agency. The poet, in short, asserts "the predominance of the soul" over matter. Emerson looks to philosophy, science, religion, and ethics for support of the subordination of matter to spirit. He does not uniformly approve of the position assigned to nature by each of these disciplines, but nevertheless finds that they all express an idealistic approach to one degree or another. He points out that although the poet aims toward beauty and the philosopher toward truth, both subject the order and relations within nature to human thought in order to find higher absolutes, laws, and spiritual realities. Scientists, too, may elevate the spiritual over the material in going beyond the accumulation of particulars to a single, encompassing, enlightening formula. And although they distrust nature, traditional religion and ethics also promote the spiritual and moral over the physical. In "Idealism," Emerson again takes up the capacity of all men to grasp the ideal and universal. Intellectual inquiry casts doubt upon the independent existence of matter and focuses upon the absolute and ideal as a higher reality. It encourages approaching nature as "an appendix to the soul" and a means of access to God. Although these complex ideas are expressed by specialists in "intellectual science," they are nevertheless available to all. And when any man reaches some understanding of divinity, he becomes more divine and renews himself physically as well as spiritually. Knowledge of the ideal and absolute brings confidence in our existence, and confers a kind of immortality, which transcends the limitations of space and time.
