起信論疏筆削記 18.47

18.47

障中，論　若人者，此十信初心之下品也。疏　業障者，亦有煩惱障，今但舉麁。論　邪魔等者，邪謂外道，魔謂天魔，諸鬼謂堆惕等，如下所說。事務者，世間一切公私之事其數眾多，故曰種種。疏　外感報障者，由內有業障故，前說善根熏習便見佛身，今明惡業因緣乃見魔鬼，將知外境皆由內心，如形端則影直，源濁則流昏矣。

Under obstacles: Treatise: "If a person...": this refers to the lower grade of the initial mind of the ten faiths. Commentary: "Karmic obstacles": there are also afflictive obstacles; here only the coarse is cited. Treatise: "Evil māras and so forth": "evil" refers to external paths; "māra" refers to heavenly māras; "various ghosts" refers to dūtī and so forth, as explained below. "Worldly affairs": all public and private worldly affairs are numerous in number; therefore it says "various kinds." Commentary: "Retributive obstacles induced externally": because internally there are karmic obstacles. Previously it was explained that the perfuming of wholesome roots leads to seeing the Buddha's body; now it clarifies that the causes and conditions of unwholesome karma lead to seeing māras and ghosts. From this one realizes external conditions all stem from the internal mind, just as an upright form makes a straight shadow, and a turbid source makes a murky stream.