Adhyaya 61 — ग्रह-नक्षत्र-स्थाननिर्णयः
Cosmic Abodes of Luminaries and the Shaiva Order of Time
तमोवीर्यमयो राहुः प्रकृत्या कृष्णमण्डलः भरणीषु समुत्पन्नो ग्रहश्चन्द्रार्कमर्दनः
tamovīryamayo rāhuḥ prakṛtyā kṛṣṇamaṇḍalaḥ bharaṇīṣu samutpanno grahaścandrārkamardanaḥ
罗睺由惰性黑暗(tamas)之力所成,其性本为黑色圆轮。生于婆罗尼宿(Bharaṇī),乃摄星(graha),能侵扰月与日。
Suta Goswami (narrating to the sages of Naimisharanya)
It frames eclipse-forces like Rāhu as tamasic obscurations within prakṛti; in Linga worship, the devotee turns to Pati (Śiva) as the regulator of cosmic forces, seeking clarity (prakāśa) and release from pasha-like afflictions.
Indirectly: by describing Rāhu as tamas-born and nature-bound, it implies Śiva-tattva as transcendent to the guṇas—Pati who is not seized by ग्रह or tamas, and who grants the pashu freedom from obscuring bondage.
No specific rite is stated, but the takeaway aligns with Pāśupata Yoga: reducing tamas through discipline, mantra, and Śiva-bhakti so that ग्रह-like obscurations (inner and outer) lose their hold.