A 5 class Navarātri sādhana to learn the famous Durgā Sūktam, a mantra from the Veda-s recited to overcome difficulties encountered in our life. This hymn of 8 mantras appears in the Mahānārāyaṇa Upaniṣat of the Yajur Veda, of which 4 mantras are also in the Ṛg Veda and addressed to Agni.