तत्प्रवृत्तावप्यनिरासः संवेत्तृभावात्
In plain words
Even in the course of that, there is no casting off, because of the state of the knower.
The commentators
Śivasūtra with Kṣemarāja's Vimarśinī
नन्वेवं सृष्टिस्थितिलयावस्थासु अन्योन्यभेदावभासमयीषु अस्य स्वरूपान्यथात्वमायातम् ! इत्याशङ्काशान्त्यर्थमाह - तत्प्रवृत्तावप्यनिरासः संवेत्तृभावात् ॥ ३२ ॥ तेषां सृष्ट्यादीनां प्रवृत्तावपि उन्मज्जनेऽपि नास्य योगिनः संवेत्तृभावात् तुर्यचमत्कारात्मकविमर्शमयात् उपलब्धृत्वात् निरासश्चलनम् तन्निरासे कस्यचिदप्यप्रकाशनात् । यदुक्तं तत्रैव नाशेऽविद्याप्रपञ्चस्य स्वभावो न विनश्यति । उत्पत्तिध्वंसविरहात्तस्मान्नाशो न वास्तवः ॥ यतोऽविद्या समुत्पत्तिध्वंसाभ्यामुपचर्यते । यत्स्वभावेन नष्टं न तन्नष्टं कथमुच्यते ॥ इति । एतदेव स्पन्दे अवस्थायुगलं चात्र कार्यकर्तृत्वशब्दितम् । कार्यता क्षयिणी तत्र कर्तृत्वं पुनरक्षयम् ॥ तथा । कार्योन्मुखः प्रयत्नो यः केवलं सोऽत्र लुप्यते । तस्मिँल्लुप्ते विलुप्तोऽस्मीत्यबुधः प्रतिपद्यते ॥ न तु योऽन्तर्मुखो भावः सर्वज्ञत्वगुणास्पदम् । तस्य लोपः कदाचित्स्यादन्यस्यानुपलम्भनात् ॥ इत्यनेनोक्तम् ॥ ३२ ॥
In plain words
Even when these go forth, there is no loss, because he is the knower. But, it may be objected, in this way, in the states of creation, maintenance and dissolution, which are made of their appearing as different from one another, his nature would have become otherwise. To quiet this doubt he says: Even when these, creation and the rest, go forth, that is, emerge, there is no loss, no slipping, for this yogin, because he is the knower: because he is the perceiver made of reflective awareness whose nature is the wonder of the fourth. For were that lost, nothing at all would shine. As it says in the same place: "When the spread of ignorance perishes, the nature does not perish; because it is without arising and destruction, its perishing is not real. Since ignorance is spoken of figuratively through arising and destruction, how can what has not perished in its nature be called perished?" This very point is stated in the Spanda by: "And here there are two states, named effect and agency; of them, being an effect perishes, but agency does not perish." And: "Only the effort turned towards an effect is lost here; when it is lost, the unknowing one thinks, 'I am lost'. But the inner state, the seat of the quality of all-knowingness, can never be lost, for no other is perceived."