Transcendentalism emphasizes subjective intuition over objective empiricism. Ralph Waldo Emerson wrote several books of essays, commonly associated with transcendentalism and romanticism. Ruether connects eschatological feminism to mysticism and asceticism by way of its roots in transcendentalism. They delved into transcendentalism, mysticism, and yoga. Specifically, Nash describes the evolution of American wilderness conception through Transcendentalism, Primitivism, Preservationism, to Conservationism. He had a major influence on Ralph Waldo Emerson and American transcendentalism. Emerson regarded Hinduism and Buddhism as anticipations of an ideal Transcendentalism. Alcott became friends with Ralph Waldo Emerson and became a major figure in transcendentalism. She was an advocate of antislavery and of Transcendentalism. Miller and Versluis regard Emanuel Swedenborg as a pervasive influence on transcendentalism. His later writings also reflect his negative view of the Transcendentalism movement. Poe, however, strongly disliked transcendentalism. Bates wrote of relaxation but Huxley brings in transcendentalism. Transcendentalism was also influenced by Indian thought. Transcendentalism has been directly influenced by Indian religions.