成唯識論演祕 7.588

7.588

即欲界中苦受所引不安隱性，名苦麁重。初定力微，未能發生殊勝喜樂及勝輕安，未遍適悅故，未能斷彼苦麁重。二定相違，故彼方斷。又《婆沙論》八十一云：問：離欲染時斷憂及苦，契經何故說第二定而滅苦耶？

Namely, the unpeaceful nature induced by painful feeling in the desire realm is called the crude heaviness of pain. The power of the first dhyāna is weak; it has not yet been able to generate extraordinary joy and bliss and superior pliancy, and because it has not yet pervaded with delight, it has not yet been able to sever that crude heaviness of pain. The second dhyāna is contrary to it, so only there is it severed. Furthermore, the Mahāvibhāṣā, fascicle 81, says: Question: When separating from desire and defilement, grief and pain are severed; why does the discourse say that pain is extinguished in the second dhyāna?