In the Lotus Sūtra, the śrāvakas and pratyekabuddhas are taught that they should walk the path of the bodhisattva, by continuing the practices of bodhisattvas. If they continued to do so into the far distant future, in some future world they could realize their dreams to become a buddha.

What are the bodhisattvas’ practices? Their foundation demands a firm faith in the Lotus Sūtra. This means that bodhisattvas must trust what the Lotus Sūtra asserts most strongly. They must believe that every person possesses the innate possibility to achieve buddhahood.

This concept is difficult to believe and difficult to understand. Śākyamuni Buddha says this to Śāriputra, the wisest of his disciples.

“Even you, Śāriputra,
Have understood this sūtra
Only by faith.
Needless to say,
The other Śrāvakas cannot do otherwise.
They will be able to follow this sūtra
Only because they believe my words,
Not because they have wisdom.”

Even Śāriputra cannot understand this concept, that all people can achieve buddhahood, only by thinking. It therefore must be much more difficult for anyone else. This fact that there is not one person who cannot become a buddha is an unmistakable truth that Śākyamuni has understood through the wisdom of the buddhas. Therefore, the message is that you can fully receive this truth only by faith.