Complex sentence: The role of the Quaternity in religious symbolism is discussed at length by Carl Gustav Jung and much of the Swiss psychologist's observations on the quaternity is applicable to the symbolism of the Layer Quaternio.
Split into simpler sentences: The role of the Quaternity in religious symbolism is discussed at length by Carl Gustav Jung. Much of his in depth study on the role and function of the quaternio in religious symbolism is applicable to the Layer Quaternio.