大般涅槃經義記 6.259

6.259

就後六偈明不安中，初之三偈有惡不安，後之三偈有苦不安。前中，初偈由癡造惡，第二一偈由貪造惡，第三由近惡友造惡。後三偈中明有七苦不得安眠，初偈明有病苦不安，「於王有怨」死苦不安，餘五明有求不得苦所以不安。

Regarding the latter six verses that explain lack of peace, the initial three verses concern lack of peace due to possessing evil, and the latter three verses concern lack of peace due to possessing suffering. In the former [group], the initial verse concerns creating evil due to delusion, the second verse concerns creating evil due to greed, and the third concerns creating evil due to associating with bad companions. In the latter three verses, it explains that because of possessing seven sufferings, one cannot attain peaceful sleep: the initial verse explains the lack of peace from the suffering of illness; "having enmity toward the king" is the lack of peace from the suffering of death; the remaining five explain the lack of peace from the suffering of not getting what one seeks.