“Thus have I heard,” literally means, “I have heard the Buddha’s teachings in this way.” But it also implies that others might have interpreted them in some other way. Sakyamuni employed an expedient method of preaching so that he could be understood by the individual listener in his or her particular situation. For this reason, the interpretations of his teachings varied among the believers. Thus a large number of sutras were created over the years, and they did not always agree in their details. The meaning of the Lotus Sutra, however, cannot be interpreted differently, because, unlike the others, it is not a mere expedient for some listeners only, but the final teaching for everyone. Therefore, this sutra expects us to read the opening words as, “I have heard THIS,” emphasizing that everyone surely hears and understands it the same way.
Introduction to the Lotus Sutra