摩訶止觀 6.158

6.158

二、明入假利益者：菩薩本不貴空而修空，本為眾生故修空。不貴空故不住，為益眾生故須出。故有從真起應，法眼稱機。應以佛身得度，即作佛身說法授藥；應以菩薩、二乘、天龍八部等形得度，而為現之。成就眾生，淨佛國土，乃名「利益」。

Second, clarifying the benefits of entering the provisional: Bodhisattvas originally do not value emptiness yet cultivate emptiness; they cultivate emptiness originally for the sake of sentient beings. Because they do not value emptiness, they do not abide in it; because they must benefit sentient beings, they must step forth. Therefore, arising from the true to respond, the Dharma eye matches the capacities. If they should be delivered by a Buddha body, they immediately manifest a Buddha body to preach the Dharma and dispense medicine; if they should be delivered in the form of a bodhisattva, the two vehicles, or the devas, dragons, and eight classes, they manifest these for them. Bringing sentient beings to fruition and purifying Buddha lands is alone called 'benefit'.