Transcendentalism

Source: dictionary.com
tran·scen·den·tal·ism
–noun
1. transcendental character, thought, or language.
2. Also called transcendental philosophy. Any philosophy based upon the doctrine that the principles of reality are to be discovered by the study of the processes of thought, or a philosophy emphasizing the intuitive and spiritual above the empirical: in the U.S., associated with Emerson.
Origin: 1795–1805;