法華經義記 4.35

4.35

今就此譬中自有兩階：初「是時長者見諸子等安穩得出」，先明斷惑出三界外登無學果也；第二言「皆於四衢道」下，正明大乘機發。「四衢道」者，東西盡徹、南北交通，此明四邊無障。「露地」者，此明上又無礙。五處無障，此表明大乘機發，五濁不能為障。下即釋言無障，此釋四邊無障。又言無礙，此釋上又無礙也。

Now, within this parable itself there are two stages: first, "At that time the elder saw that his sons had got out in safety," which first clarifies severing delusions, emerging outside the three realms, and ascending to the fruition of the non-learner; second, the passage from "all [sat] at a crossroad" onward, which directly clarifies the arousal of the capacity for the Great Vehicle. "A crossroad" means completely unobstructed from east to west and openly traversable from south to north; this clarifies that the four sides are unobstructed. "Open ground" clarifies that above there is also no obstruction. Being unobstructed in these five places outwardly indicates that when the capacity for the Great Vehicle is aroused, the five turbidities cannot act as obstructions. Below it then explains, saying "unobstructed"; this explains the absence of obstruction on the four sides. It also says "unhindered"; this explains the absence of hindrance above.