Sayd is one of the immortal Guardians of the Universe. Countless Eons ago, the mysterious and ancient Guardians of the Universe took up the charge to protect the universe and safeguard it against chaos and evil. Sayd was amongst their ranks, and helped to build Oa, divide the universe into 3600 sectors, and harness the limitless energy of Will to power their justice enforcing organisation, the Green Lantern Corps. She also participated in the creation and distribution of the Power Rings and their batteries, and has since been guiding the universe along with her brethren from the Oan Citadel.