摩訶止觀 8.181

8.181

次、明魔羅者：為破二善，增二惡故，喜從五根作強、軟來破。《大論》云：「魔名『花箭』，亦名『五箭』；各射五根，共壞於意。」五根各一剎那，剎那若轉，即屬意根；意根若壞，五根豈存？眼見可愛色，名「花箭」，是軟賊；見可畏色，名「毒箭」，是強賊；見平平色，不強不軟賊。餘四根亦如是。合十八箭，亦名「十八受」。以是義故，不應受著。著則成病，病則難治；永妨禪定，死墮魔道。

Next, explaining the māra: In order to ruin the two kinds of goodness and augment the two kinds of evil, it delights in approaching through the five faculties, acting as hard or soft [assailants] to destroy [the practitioner]. The Daluun says: 'Māra is named "flower arrows" and is also named "five arrows"; each shoots at the five faculties, together destroying the mental faculty.' The five faculties each endure for a single instant; if that instant turns, it belongs to the mental faculty; if the mental faculty is ruined, how could the five faculties survive? The eye seeing attractive forms is called the 'flower arrow,' which is the soft thief; seeing terrifying forms is called the 'poison arrow,' which is the hard thief; seeing neutral forms is the neither-hard-nor-soft thief. The remaining four faculties are also like this. Combined, they are eighteen arrows, also named the 'eighteen feelings.' For this reason, one must not grasp and become attached to them. If one is attached, it becomes an illness; if an illness, it is difficult to cure; it permanently obstructs dhyāna and samādhi, and upon death one falls into the path of māras.