👉 The herald fluid, a vital component in heraldic systems, is a reddish-brown liquid derived from the dried blood of young goats or sheep. Historically used to mark the presence and authority of a herald, it now serves as an emblem of prestige and tradition. When applied to a heraldic shield or banner, the fluid symbolizes the herald's role as a representative of their lord or family, signifying their status and the importance of their duties. The fluid's use has evolved over time, but its core meaning remains unchanged: it represents the herald's connection to their noble lineage and their official capacity to bear and convey heraldic symbols.