金剛三昧經論 2.168

2.168

經曰　大力菩薩言：「無際心智其智無涯，無涯之心心得自在，自在之智得入實際，如彼凡夫軟心眾生其心多喘，以何法御，令得堅心得入實際？」

The sūtra says: Mahābalavān Bodhisattva said, "The cognition of the limitless mind has cognition without bound. The boundless mind attains mastery of mind; cognition with mastery attains entry into the reality-limit. But ordinary persons and weak-minded sentient beings have minds that pant excessively. By what dharma should they be steered, so that they attain a firm mind and can enter the reality-limit?"