ललितोपाख्याने जप-न्यास-योगप्रकरणम्
Lalitopākhyāna: Procedure of Japa, Nyāsa, and Yogic Installation
एवं विन्यस्तदेहस्तु देवताविग्रहो भवेत् / ततः षोढा पुरः कृत्वा श्रीचक्रन्यासमाचरेत्
evaṃ vinyastadehastu devatāvigraho bhavet / tataḥ ṣoḍhā puraḥ kṛtvā śrīcakranyāsamācaret
When the body is thus established by nyāsa, it becomes the very icon of the deity. Then, having first performed the sixteenfold nyāsa, one should undertake the nyāsa of the Śrīcakra.