Matsya Purana — Marks of Karma-yoga and the Five Great Daily Sacrifices
*सूत उवाच कर्मयोगं च वक्ष्यामि यथा विष्णुविभाषितम् ज्ञानयोगसहस्राद्धि कर्मयोगः प्रशस्यते //
*sūta uvāca karmayogaṃ ca vakṣyāmi yathā viṣṇuvibhāṣitam jñānayogasahasrāddhi karmayogaḥ praśasyate //
Sūta said: “I shall also expound Karma-yoga, just as Viṣṇu explained it; for Karma-yoga is praised as superior even to a thousand discourses on Jñāna-yoga.”
This verse does not discuss pralaya directly; it shifts the focus to spiritual discipline, asserting that dutiful, consecrated action (karma-yoga) is highly valued in the Purāṇic path.
It supports the householder/kingly ideal that righteous duties—governance, charity, protection, ritual obligations—when performed as karma-yoga (without selfish attachment and in alignment with dharma) are a powerful means of spiritual progress.
No specific vastu or iconographic rule is stated here; the ritual implication is general—acts such as worship, gifts, and prescribed rites become spiritually fruitful when performed in the spirit of karma-yoga.