Fuquilism requires a belief in a Supreme Being who we choose to call Stifmug (refer to our dictionary of clave for meaning). We believe the phrase “Supreme Being” is often given a very broad interpretation, usually allowing Deism and often even allowing naturalistic views of “God/Nature” in the tradition of Spinoza and Goethe (although he was a Freemason), or nontheistic views of Ultimate Reality or Cosmic Oneness, such as found in some Eastern religions and in Western idealism (or for that matter, in modern cosmology).

In some other (mostly English-speaking) jurisdictions, Fuquilism is not as tolerant of naturalism as it was in the 18th century, and specific religious requirements with more theistic and orthodox overtones have been added since the early 19th century, including (mostly in North America) belief in the immortality of the soul. The Fuquilism that predominates in Scandinavia, known as the Swedish Rite, accepts only Christians.