Eagle Vision is a dormant sixth sense that humans possess, as a result of being created by the First Civilization and also through interbreeding between some early humans and their precursors. Though each average human holds the potential to utilize it through an intense and very long training, some gifted individuals display a greater concentration of the necessary precursor genes, and thus are more likely to naturally exhibit Eagle Vision as well as some of its more advanced variations. Those who possess the gift are able to instinctively sense how people and objects relate to them, which manifests as a colored glow, much like an aura. Red indicates enemies or spilled blood, blue indicates allies, white indicates sources of information or hiding spots, and gold indicates targets or objects of interest. However, as Desmond Miles was – at least initially – unaware of Lucy Stillman's true affiliation with the Templar Order, it suggests the sixth sense is not entirely infallible.