俱舍論頌疏論本 8.36

8.36

"The defiled are encompassed by the four alternatives" clarifies their similarities and differences. As for similarity, both these four stations of consciousness and the seven stations of consciousness are encompassed by the defiled (sāsrava). As for difference, they are differentiated by four alternatives (catuṣkoṭi): the four stations of consciousness are broad in scope but narrow in substance, being broad in scope because they extend to the evil destinies, etc., and narrow in substance because they do not include the aggregate of consciousness. On the other hand, the seven stations of consciousness are broad in substance but narrow in scope, being broad in substance because they extend to the aggregate of consciousness as substance, and narrow in scope because they do not include the evil destinies, etc. Because they are mutually broad and narrow, they can form four alternatives: (1) there are [things that are] the seven stations of consciousness but not the four stations of consciousness, namely, consciousness within the seven [stations]—since it is included in the seven, it is a [member of the] seven stations of consciousness, but since it is the aggregate of consciousness, it is not one of the four stations of consciousness; (2) there are the four stations of consciousness but not the seven stations of consciousness, namely, the four aggregates of feeling, etc., in the three evil destinies, the fourth dhyāna, and the heaven of the peak of existence—since they are the four aggregates, they are the four stations of consciousness, but since they belong to the evil destinies, etc., they are not the seven stations of consciousness; (3) the third alternative of both: namely, the four aggregates within the seven [stations]; (4) the fourth alternative of neither: namely, excluding the previous characteristics, which is the aggregate of consciousness within the aforementioned evil destinies, etc.—since it belongs to the evil destinies, etc., it is not of the seven stations of consciousness, and since it is the aggregate of consciousness, it is not of the four stations of consciousness.