法華經義記 4.36

4.36

「其心泰然歡喜踊躍」，此是第六明長者見子出難故歡喜，即譬上〈方便品〉中第七「我即作是念」下竟「今我喜無畏」二行一句，明如來見三乘人大乘機本發故歡喜。但上譬本中有二：初兩行明致喜所由，今不為作譬；第二言「我今喜無畏」一句正明歡喜，今正為此作譬。然大乘機發稱如來本意，是故其心泰然歡喜踊躍。

"His mind was at ease, and he rejoiced and leapt for joy": this is the sixth [section], clarifying that because the elder saw his sons escape the calamity, he rejoiced. This matches above in the "Expedient Means Chapter" the seventh [passage], the two lines and one phrase from "I then thought..." down to "now I rejoice without fear," which clarifies that the Tathāgata rejoiced because he saw the fundamental capacity for the Great Vehicle aroused in the people of the three vehicles. But in the original passage above to be parabled there were two parts: the first two lines clarify the reason that led to the joy, for which no parable is made here; the second, the single phrase "now I rejoice without fear," directly clarifies the rejoicing, and here a parable is directly made for this. Furthermore, because the arousal of the capacity for the Great Vehicle corresponds to the Tathāgata's original intention, his mind was at ease, and he rejoiced and leapt for joy.