The good men or women who expound even a phrase of the Sūtra of the Lotus Flower of the Wonderful Dharma even to one person even in secret after my extinction,

What has been mentioned is the abundance of merits one obtains when one receives [the sūtra] for oneself. Now [the Buddha] talks about preaching it to another person, which represents an altruistic act, benefitting others. When one’s Path (Tao) embraces [others] as well, one’s merits and rewards will be endless.

know this, are my messengers.

The mind of Great Benevolence always cherishes the idea of propagating the Dharma. If a man is a practitioner of the Dharma, he is then “an emissary of the Thus Come One.”

They are dispatched by me.

This explains that what they understand comes from the Buddha’s understanding. I say “[their understanding] comes from the Buddha’s,” because certainly the Thus Come One is the source of understanding, and they act in compliance with him. The Thus Come One from the beginning takes propagating the Dharma to be his business. And he who can do so is said to be “doing the Thus Come One’s business.”