Lotus Sutra
In East Asian Buddhism, Shakyamuni Buddha of the Essential Teachings (Chapters 15-28) of the Lotus Sutra is considered the eternal Buddha. In the sixteenth chapter of the Lotus Sutra, Shakyamuni Buddha reveals that he actually attained Buddhahood in the inconceivably remote past. The Eternal Buddha is contrasted to Shakyamuni Buddha who attained enlightenment for the first time in India, which was taught in the pre-Lotus Sutra teachings.