法苑珠林 83.22

83.22

又智度論云。身精進為小。心精進為大。外精進為小。內精進為大。復次佛說意業力大故。如仙人瞋時令大國磨滅。復次身口作五逆罪。大果報一劫在阿鼻地獄。受意業力。得生非有想非無想處。壽八萬大劫。亦在十方佛國壽命無量。以是故身口精進為小。意精進為大。如是諸經廣歎精進。一心正念速得道果。未必要須多聞。

Furthermore, the Mahāprajñāpāramitā-śāstra says: Bodily vigor is minor; mental vigor is major. External vigor is minor; internal vigor is major. Moreover, the Buddha taught that the power of mental karma is great; for instance, when a ṛṣi becomes angry, he can cause a great kingdom to be obliterated. Moreover, when body and speech commit the five grave sins, their great retribution is one kalpa in the Avīci hell; yet under the power of mental karma, one can be born in the sphere of neither-perception-nor-non-perception with a lifespan of eighty thousand mahākalpas, or have an immeasurable lifespan in the Buddha-lands of the ten directions. For this reason, vigor of body and speech is minor, whereas vigor of mind is major. In this way, the various sūtras extensively praise vigor: with single-minded right mindfulness one quickly attains the fruits of the Way; it is not necessary to have broad learning.