Adhyaya 70: आदिसर्गः—महत्-अहङ्कार-तन्मात्रा-भूतसृष्टिः, ब्रह्माण्डावरणम्, प्रजासर्गः, त्रिमूर्ति-शैवाधिष्ठानम्
ब्रह्माऽस् सोन्स् अग्रे ससर्ज वै ब्रह्मा मानसानात्मनः समान् ऋभुः सनत्कुमारश् च द्वावेतावूर्ध्वरेतसौ
Brahmā's sons agre sasarja vai brahmā mānasānātmanaḥ samān ṛbhuḥ sanatkumāraś ca dvāvetāvūrdhvaretasau
आदि काळी ब्रह्म्याने आपल्या संकल्पासमान मनोज पुत्र उत्पन्न केले—ऋभु आणि सनत्कुमार. ते दोघे ऊर्ध्वरेतस होते; ब्रह्मचर्यात स्थित राहून तेज व वीर्य ऊर्ध्वगतीने धारण करीत.
Suta Goswami (narrating Brahmā’s manasa-srishti to the sages of Naimisharanya)
By presenting Brahmā’s mind-born, celibate sages, the verse foregrounds tapas and brahmacarya as the inner purity that supports Shiva-linga upāsanā—devotion rooted in restrained senses and upward-directed consciousness.
Though Shiva is not named here, the ideal of ūrdhva-retas points to a Shaiva yogic orientation: turning creative force inward and upward toward Pati (Shiva), loosening pasha (bondage) that binds the pashu (soul) to outward craving.
The highlighted practice is ūrdhva-retas brahmacarya—sublimation and conservation of vital energy—an essential discipline aligned with Pashupata-style renunciation and meditative steadiness.