Nārāyaṇa-kavaca — The Armor of Lord Nārāyaṇa
न्यसेद्धृदय ओंङ्कारं विकारमनु मूर्धनि । षकारं तु भ्रुवोर्मध्ये णकारं शिखया न्यसेत् ॥ ८ ॥ वेकारं नेत्रयोर्युञ्ज्यान्नकारं सर्वसन्धिषु । मकारमस्त्रमुद्दिश्य मन्त्रमूर्तिर्भवेद् बुध: ॥ ९ ॥ सविसर्गं फडन्तं तत्सर्वदिक्षु विनिर्दिशेत् । ॐ विष्णवे नम इति ॥ १० ॥
nyased dhṛdaya oṁkāraṁ vi-kāram anu mūrdhani ṣa-kāraṁ tu bhruvor madhye ṇa-kāraṁ śikhayā nyaset
Then one should chant the six-syllabled mantra, “oṁ viṣṇave namaḥ.” Place “oṁ” upon the heart, “vi” upon the crown of the head, “ṣa” between the eyebrows, “na” upon the śikhā (tuft), and “ve” between the eyes. Place “na” upon all the joints of the body and meditate on “ma” as a weapon; thus the chanter becomes the very form of the mantra. Thereafter, adding the visarga, one should utter “maḥ astrāya phaṭ” in all directions, beginning from the east, binding every quarter with the mantra’s protective armor.
In this verse, Śukadeva describes mantra-nyāsa—placing the syllables of “oṁ viṣṇave namaḥ” on different parts of the body—so the devotee becomes “mantra-mūrti,” the embodied presence of the mantra, and projects protection in all directions.
Chapter 6.8 presents the Nārāyaṇa-kavaca as a devotional shield; Śukadeva explains the method so the practitioner anchors remembrance of Viṣṇu throughout the body and mind, making devotion itself the protection.
Chant “oṁ viṣṇave namaḥ” with steady attention, mentally dedicating your heart, mind, vision, and actions to Viṣṇu; this cultivates inner steadiness and a protective devotional focus amid stress and uncertainty.