मन्त्रराजं सप्रणवं ध्यायेत्सोऽपि न पश्यति । इत्युक्ता सा तपोनिष्ठा तपश्चरितुमागता
mantrarājaṃ sapraṇavaṃ dhyāyetso'pi na paśyati | ityuktā sā taponiṣṭhā tapaścaritumāgatā
แม้ผู้ใดจะเพ่งภาวนาราชาแห่งมนต์พร้อมด้วยปรณวะ (โอม) ก็ยังไม่อาจเห็นจุดหมายได้เพียงเท่านั้น ครั้นได้รับคำสอนดังนี้ นางผู้มั่นคงในตบะจึงออกไปบำเพ็ญตบะ
Narrator within Brahma–Nārada dialogue (attribution by section context)
Scene: A teacher-figure instructs an ascetic woman; behind them, a symbolic praṇava and mantra appear, while the ascetic turns toward the path of austerity in the mountains.
Mantra and meditation must be supported by disciplined tapas and steadfast conduct to bear fruit.
The setting is within the Hāṭakeśvara-kṣetra Māhātmya section of the Nāgara-khaṇḍa.
Meditation on the mantrarāja with Praṇava is referenced, alongside the necessity of performing tapas.