ललितोपाख्याने जप-न्यास-योगप्रकरणम्
Lalitopākhyāna: Procedure of Japa, Nyāsa, and Yogic Installation
सदाशिवं च पूषाणं तूलिकां च प्रकाशकम् / विद्यासनं च विन्यस्य हृदये दर्शयेत्ततः
sadāśivaṃ ca pūṣāṇaṃ tūlikāṃ ca prakāśakam / vidyāsanaṃ ca vinyasya hṛdaye darśayettataḥ
Then, placing Sadāśiva and Pūṣan, along with Tūlikā and the Illuminator, and establishing the Seat of Knowledge (Vidyāsana), let him thereafter reveal it within the heart.