In the chapters which follow, the Lotus Sutra will affirm that: (1) faith in Sakyamuni Buddha of this our World of Endurance and (2) practices based on that faith should be the core of Buddhism, even though many subsidiary teachings may exist.
Meanwhile, the story of the sixteen princes is intended to teach that the Bodhisattvas (the princes) must do what Sakyamuni did – save all living beings by teaching the truth. Although the profound wisdom of the Buddha is beyond the reach of Bodhisattvas, they nevertheless share the heart of the Buddha. That heart is a commitment to universal salvation – the act of benefiting others.
In the chapters which follow, we shall see some examples of such acts performed by some of the Bodhisattvas, and the story of the sixteen princes here serves as an introduction to those practices.
Introduction to the Lotus Sutra