大方廣圓覺修多羅了義經略疏 2.1393

2.1393

前問云何護持？今答意云：但莫令惡魔、外道惱身心者，即是護持。然惱身心俱通魔外，若以義配者，外道以邪智惑人令疑，是惱心也；魔以神力令種種不安，乃至病等，是惱身也。故經說：「眾魔者樂生死，外道者著諸見」等。二事皆令初心行人退屈，實藉護持。

Previously it was asked: how are they to be protected and upheld? Here the intended answer is: simply not letting evil māras and non-Buddhists trouble their bodies and minds is itself protection and upholding. However, troubling body and mind applies equally to both māras and non-Buddhists. If matched by meaning, non-Buddhists delude people and cause doubt through wrong knowledge, which is troubling the mind; māras use supernatural power to cause various disquiets, up to diseases and the like, which is troubling the body. Hence the sūtra says: "The māras take delight in saṃsāra, while non-Buddhists cling to views," and so forth. Both matters cause initial practitioners to backslide; truly, they rely on protection and upholding.