Complex sentence: In 1986, Moss felt the need to get away from the commercial fast track and moved to a farm in upstate New York, where he started dreaming in a language he did not know that proved to be an archaic form of the Mohawk language.
Split into simpler sentences: In 1986, Moss felt the need to get away from the commercial fast track and moved to a farm in upstate New York. There he claimed he started dreaming in a language he did not know that proved to be an archaic form of the Mohawk language.