मुनिमोहशमनम्
Pāśupata-yoga, Siddhis, Puruṣa-darśana, Saṃsāra, and Prāṇa-Rudra Pañcāhutī
न क्षीयते न क्षरति खिद्यते न कदाचन क्रियते वा न सर्वत्र तथा विक्रियते न च
na kṣīyate na kṣarati khidyate na kadācana kriyate vā na sarvatra tathā vikriyate na ca
He does not diminish, nor does He leak away or decay; He is never afflicted. He is not something newly produced by action, nor is He altered anywhere—thus He undergoes no modification at all. This is the mark of Pati (Śiva), the immutable Reality beyond all pāśa-bound change.
Suta Goswami (narrating the teaching on Shiva’s nirvikāratva to the sages of Naimisharanya, consistent with the Purva-Bhaga discourse style)
It frames the Liṅga as the sign of the changeless Pati—worship is directed to Śiva who neither decays nor transforms, so the devotee (paśu) seeks liberation from pasha-bound change by fixing awareness on the immutable.
Śiva-tattva is presented as nirvikāra (without modification): not subject to loss, decay, sorrow, production by karma, or transformation—distinguishing the Lord (Pati) from the soul (paśu) and the bonds (pāśa).
The verse supports Pāśupata-style contemplation (dhyāna) on the nirvikāra Lord during Liṅga-pūjā—stabilizing the mind in the unchanging Śiva rather than in transient ritual results.