अनाद्यविद्याऽनिर्वाच्या कारणोपाधिरुच्यते ।उपाधित्रितयादन्यमात्मानमवधारयेत् ॥ १४ ॥
In plain words
Avidyā has no beginning, and no words can pin it down; this is what is called the causal upādhi. Ascertain the ātman as other than all three coverings — and hold that firmly.
Close to the Sanskrit
Beginningless ignorance, indescribable, is called the causal limiting adjunct. One should ascertain the Self as other than the triad of adjuncts.