Adhyaya 4: अहोरात्र-युग-मन्वन्तर-कल्पमान तथा प्रलयान्ते सृष्ट्युपक्रमः
चतुर्युगस्य च तथा वर्षसंख्या प्रकीर्तिता चतुर्युगसहस्रं वै कल्पश्चैको द्विजोत्तमाः
caturyugasya ca tathā varṣasaṃkhyā prakīrtitā caturyugasahasraṃ vai kalpaścaiko dvijottamāḥ
Thus the number of years comprising a Caturyuga has been declared. Know, O best of the twice-born, that a single Kalpa consists of a thousand such Caturyugas—this is the measure of the cosmic cycle in which creation unfolds under the Lord (Pati).
Suta Goswami
It frames Linga worship within vast cosmic time: the Linga signifies the timeless Pati (Shiva) who presides over recurring cycles of creation (srishti) measured as yugas and kalpas.
By emphasizing the immensity and regularity of cosmic cycles, it points to Shiva-tattva as the transcendent Lord (Pati) beyond time (kāla), while also immanent as the governor of cosmic order in each kalpa.
No specific rite is prescribed in this verse; the takeaway is contemplative: Pashupata-oriented practice treats time as part of pasha (bondage) and seeks refuge in Pati through Shiva-dhyana and Linga-upasana.