The Lesser Mark of Illumination was the symbol of those who joined the Chalactan Adepts, one of the Marks of Illumination. It was a small gold bead (identical in every other respect to the Greater Mark of Illumination) affixed between the individual's eyes. It represented the seeker. Along with the Greater Mark, it was the symbol of the Adepts. Depa Billaba had both marks on her forehead.