The Explanation of Sandhyā and Related Daily Observances
Saṅdhyā-ādi Nitya-karma-Vidhi
रोगाद्यशक्तो मनुजः कुर्यात्तत्राघमर्षणम् । अथवा भस्मना स्नातो रजोभिश्चैव वाऽक्षमः ॥ ४३ ॥
rogādyaśakto manujaḥ kuryāttatrāghamarṣaṇam | athavā bhasmanā snāto rajobhiścaiva vā'kṣamaḥ || 43 ||
If a person is unable due to illness and the like, he should there perform the expiation called Āghamarṣaṇa. Or else, being unable, he should bathe with ashes and also with dust.
Narratorial/authorial voice (didactic injunction)
Vrata: none
Primary Rasa: karuna
Secondary Rasa: shanta