In Chapter 15, the “Appearance of Bodhisattvas from Underground,” the earth split open before Sakyamuni, and countless Bodhisattvas welled forth. Among these Bodhisattvas, four of them were the leaders. Their names were Superb-Action, Limitless-Action, Pure-Action, and Steadily-Established Action. They and the innumerable great beings accompanying them had appeared in this world to take on the task of disseminating the Lotus Sutra after Sakyamuni’s extinction. In [Chapter 21], “Supernatural Powers of the Tathagatas,” Sakyamuni assigns them the mission for which they had come, and transmits the Sutra to them for dissemination in the future.