In "At the Reunion Buffet," Alexander McCall Smith explores the concept of faith, emphasizing the distinction between its two forms. One type of faith manifests through rituals and practices, representing a committed approach to beliefs and traditions. These actions serve to connect individuals with their cultural or spiritual heritage.

On the other hand, the second form of faith is more personal and introspective, focusing on genuine belief rather than mere adherence to rituals. This kind of faith reflects a deeper understanding and conviction, highlighting the importance of individual belief in shaping one's spirituality and identity. Together, these two facets of faith create a complex landscape of belief and practice.