The teachings of the Craft degrees (Entered Apprentice, Fellowcraft, and Master Mason) primarily focus on the foundational moral and ethical principles of Freemasonry. They utilize allegories from operative stonemasonry to impart lessons on brotherly love, relief, and truth, emphasizing self-improvement and moral conduct. These degrees introduce the concept of a 'Lost Word' and the quest for further light, guiding Masons on a journey of self-discovery and moral rectitude.
In contrast, the Royal Arch degree serves as a complement to the Craft degrees, providing deeper insights and completing the narrative established in the earlier degrees. It is often viewed as a culmination of the teachings of the Craft, where the Mason learns the genuine secrets that were lost and rediscovered, symbolizing a higher level of spiritual attainment. The Royal Arch emphasizes the importance of unity and the divine nature of the secrets revealed, which are essential for a Mason's further progression in the Craft.