Srimad Bhagavatam — Shashtha Skandha, Shloka 21
Nārāyaṇa-kavaca — The Armor of Lord Nārāyaṇa
देवोऽपराह्णे मधुहोग्रधन्वा सायं त्रिधामावतु माधवो माम् । दोषे हृषीकेश उतार्धरात्रे निशीथ एकोऽवतु पद्मनाभ: ॥ २१ ॥
devo ’parāhṇe madhu-hogradhanvā sāyaṁ tri-dhāmāvatu mādhavo mām doṣe hṛṣīkeśa utārdha-rātre niśītha eko ’vatu padmanābhaḥ
愿在白昼第五分，持可怖之弓、降伏魔众的摩杜苏达那护我。傍晚愿具三位之相的玛达瓦护我；入夜之初愿赫里希凯沙护我；夜半寂静之时，愿唯有莲脐主帕德玛那婆护我。
FAQs
This verse assigns specific names of Lord Viṣṇu to protect the devotee at afternoon, evening, dusk, and midnight, teaching continuous remembrance (smaraṇa) as a spiritual shield.
Indra, threatened by powerful enemies, was instructed by Viśvarūpa to take shelter of Lord Nārāyaṇa through a protective prayer, emphasizing that ultimate safety comes from devotion rather than mere strength.
Use time-based remembrance—briefly invoking Viṣṇu’s names at transitions like afternoon, evening, and before sleep—to cultivate steadiness, reduce fear, and anchor the mind in bhakti.