Only the Bodhisattvas of the Earth, the original disciples of the Eternal Shakyamuni Buddha, are able to teach the essential teaching [during the Latter Age of the Dharma when no other teaching is radical enough to shake beings out of their complacency, obstinacy, and spiritual blindness]. Even then, however, the provisional bodhisattvas are still present and able to protect and assist the Bodhisattvas of the Earth in accomplishing their mission.