Transcendentalism has its origins in New England of the early 1800s and the birth of Unitarianism. It was born from a debate between “New Light” theologians, who believed that religion should focus on an emotional experience, and “Old Light” opponents, who valued reason in their religious approach.
These “Old Lights” became known first as “liberal Christians” and then as Unitarians, and were defined by the belief that there was no trinity of father, son and holy ghost as in traditional Christian belief, and that Jesus Christ was a mortal.
Various philosophies began to swirl around this crowd, and the ideas that would become Transcendentalism split from Unitarianism over its perceived rationality and instead embraced German Romanticism in a quest for a more spiritual experience.
Thinkers in the movement embraced ideas brought forth by philosophers Immanuel Kant and Georg Wilhelm Friedrich Hegel, poet Samuel Taylor Coleridge, ancient Indian scripture known as the Vedas and religious founder Emanuel Swedenborg.