法華義疏 8.85

8.85

「其雨普等」下，第二、頌雨譬。遍益為普，無私稱等。「四方俱下」者，從四無量心出普益四生也。「流注無量」者，智慧辨才無滯必徹通。

From 'Its rain is universal and equal' downward is the second [section], versifying the parable of rain. Universally benefiting is 'universal'; being without partiality is called 'equal'. Regarding 'Falling simultaneously from the four directions': emerging from the four immeasurable minds, it universally benefits the four modes of birth. Regarding 'Pouring down boundlessly': wisdom and eloquence without impediment necessarily penetrate completely.