Adhyaya 49: जम्बूद्वीप-मेर्वादि-वर्षपर्वत-वन-सरः-रुद्रक्षेत्र-वर्णनम्
अर्वाक्तु निषधस्याथ वेद्यर्धं चोत्तरं स्मृतम् वेद्यर्धे दक्षिणे त्रीणि वर्षाणि त्रीणि चोत्तरे
arvāktu niṣadhasyātha vedyardhaṃ cottaraṃ smṛtam vedyardhe dakṣiṇe trīṇi varṣāṇi trīṇi cottare
To the south of Niṣadha, the northern half of the sacred altar-space (vedi) is declared. In that altar-region, there are three varṣas to the south and three varṣas to the north—thus the land is laid out for the rite in accordance with sacred direction.
Suta Goswami
It frames the ritual world spatially: correct directional mapping of the vedi mirrors the ordered cosmos, making the worship-field fit for establishing the Linga as Pati (Lord) at the center of the rite.
By presenting a structured altar-cosmos, it implies Shiva-tattva as the stabilizing center beyond north–south divisions—Pati who pervades and yet transcends the mapped regions where pashus (souls) perform worship.
Directional and spatial discipline (dik-nirṇaya) in setting up the vedi—externally as altar layout and internally as yogic ‘inner-vedi’ preparation for Pashupata-oriented Shiva-upāsanā.