My words are true.
Believe me with all your hearts!
I have been teaching them
Since the remotest past.

The Buddha sings these verses to Maitreya Bodhisattva and others gathered to hear him teach in Chapter Fifteen of the Lotus Sūtra. Maitreya had never seen any of the other Bodhisattvas who sprang up from underground in this chapter, despite his memory of previous lives and other worlds. The Buddha explains that the beings who had just appeared are also his disciples and have come to spread this Wonderful Dharma in our world. Nichiren teaches that when he realized that he was an incarnation of Superior-Practice, the leader of the Bodhisattvas from underground, then all of us who follow Nichiren and continue to keep the Lotus Sūtra are the followers of Superior-Practice. We do not need to wait for someone to come to our world and lead us. The world does not need anyone other than those already here to teach the Dharma. We are the Bodhisattvas from underground.