Adhyaya 8: Yogasthanas, Ashtanga Yoga, Pranayama-Siddhi, and Shiva-Dhyana leading to Samadhi
मैथुनस्याप्रवृत्तिर्हि मनोवाक्कायकर्मणा ब्रह्मचर्यमिति प्रोक्तं यतीनां ब्रह्मचारिणाम्
maithunasyāpravṛttirhi manovākkāyakarmaṇā brahmacaryamiti proktaṃ yatīnāṃ brahmacāriṇām
Para los yati (renunciantes) y los que guardan voto de continencia, se declara brahmacarya como la total no participación en la unión sexual—contenida en mente, palabra y acción corporal—para que el paśu afloje los lazos (pāśa) y se haga apto para la gracia de Pati, Śiva.
Suta Goswami (narrating the dharma teaching within the Linga Purana discourse)
It establishes inner purity as the foundation of worship: restraint of mind, speech, and body (especially regarding sexuality) makes the devotee fit to approach the Linga with sattva and receive Śiva’s grace.
Śiva is implied as Pati—the liberating Lord—whose anugraha is accessed when the paśu reduces pāśa through disciplined conduct; brahmacarya is presented as a direct means of loosening bondage.
Brahmacarya as a yogic vow in Pāśupata-oriented discipline: total abstention in thought, word, and deed, supporting tapas, mantra-japa, and steady meditation on Śiva.