Two passages from the Lotus Sutra Chapter 23 [The Story of the Bodhisattva Medicine King].

"Again, if anyone offers a three-thousand-great-thousandfold world full of the seven precious things in homage to buddhas, great bodhisattvas, pratyekabuddhas, and arhats, the merit this man gains is not equal to the surpassing happiness of him who receives and keeps but a single fourfold verse [Namu Myoho renge kyo] of this Law-Flower Sutra."

"Star Constellation King Flower! This sutra is that which can save all the living; this sutra can deliver all the living from pains and sufferings; this sutra is able greatly to benefit all the living and fulfill their desires. Just as a clear, cool pool is able to satisfy all those who are thirsty, as the cold who obtain a fire [are satisfied], as the naked who find clothing, as [a caravan of] merchants who find a leader, as children who find their mother, as at a ferry one who catches the boat, as a sick man who finds a doctor, as in the darkness one who obtains a lamp, as a poor man who finds a jewel, as people who find a king, as merchant venturers who gain the sea, and as a torch which dispels the darkness, so is it also with this Law-Flower Sutra; it is able to deliver all the living from all sufferings and all diseases, and is able to unloose all the bonds of mortal life."