妙法蓮華經玄義 8.7

8.7

三、含涌泉者，從譬為名也。佛以四悉檀說法，文義無盡，法流不絕。若聞世界，說一句解無量句，月四月至歲，如風於空中，自在無障礙，說初心解，已如涌泉，何況後心！何況如來！猶如石泉流潤遍益也！若聞為人、對治，起無量行，恒沙佛法，種種法門，一行無量行，入善境界，登八正直道。若聞第一義，理若虛空，虛空之法，不可格量、遍一切處，是名義涌泉。束此為法門者，教泉是法無礙辯，行泉即辭無礙辯，義泉即義無礙辯。樂說通三處，涌泉已自多含，故不可翻也。

Third, it contains "surging spring": this name is taken from a metaphor. The Buddha preached the Dharma with the four siddhāntas, its text and meaning being inexhaustible and the flow of the Dharma never ceasing. If one hears the mundane [siddhānta], expounding one phrase, one understands incalculable phrases; from months, to four months, to years, like wind in the empty sky, unhindered and unobstructed. The understanding of the initial mind's exposition is already like a surging spring, how much more so that of the later mind! How much more so that of the Tathāgata! It is like a spring from a rock whose moistening flow benefits everywhere! If one hears the individual and counteractive [siddhāntas], one arouses incalculable practices, Ganges-sands of buddha-dharmas, and various dharma gates; one practice is incalculable practices, entering the good realm and ascending the eightfold upright path. If one hears the supreme truth, the principle is like empty space; the dharma of empty space cannot be measured and is pervasive in all places: this is called the surging spring of meaning. Grouping these as dharma gates: the spring of teaching is the unhindered eloquence of dharma; the spring of practice is the unhindered eloquence of phrasing; the spring of meaning is the unhindered eloquence of meaning. Delightful speech permeates the three places. Since "surging spring" already contains so much within itself, it cannot be translated.