‘The Tathagata is able to discriminate everything, preach the law skillfully, use gentle words, and cheer the hearts of all. Sariputra! Essentially speaking the Buddha has altogether fulfilled the infinite, boundless, unprecedented Law. Enough, Sariputra, there is no need to say more. Wherefore? Because the Law, which the Buddha has perfected is the chief unprecedented Law, and difficult to understand. Only a buddha together with a buddha can fathom the Reality of All Existence, that is to say, all existence has such a form, such a nature, such an embodiment, such a potency, such a function, such a primary cause, such a secondary cause, such an effect, such a recompense, and such a complete fundamental whole.’
This is the heart of The Lotus Sutra, the revealing of the final complete teaching of the Buddha after he acknowledges his previous teaching as skillful or expedient means to bring people along the path to understanding. I am very tempted to head straight back to Dogen to remind myself how he parses these lines in the Shobogenzo.