Dīkṣā-bhedaḥ (Types of Initiation) — Lalitopākhyāna: Hayagrīva–Agastya Dialogue
गुरुबुद्ध्या नमेत्सर्वं दैवतं तृणमेव वा / प्रणमेद्देवबुद्ध्या तु प्रतिमां लोहमृन्मयीम्
gurubuddhyā nametsarvaṃ daivataṃ tṛṇameva vā / praṇameddevabuddhyā tu pratimāṃ lohamṛnmayīm
With the understanding of the Guru, one should bow to all—be it a deity or even a blade of grass. But with the understanding of Deva, one should bow to an image (pratimā) made of metal or clay.