Karika 14

avivēkyādēssiddhistraiguṇyāttadviparyayābhāvāt। kāraṇaguṇātmakatvātkāryasyāvyaktamapi siddham ॥14॥

In the unintelligent body, achievements arise from the three qualities because of their deficiency and opposing nature. Thus, qualities are the cause of activities. Hence, the un-manifest nature of the soul is established.