Matsya Purana — Dialogue of Aṣṭaka and Yayāti: Exhaustion of Merit
घ्राणेन गन्धं जिह्वयाथो रसं च त्वचा स्पर्शं मनसा देवभावम् इत्यष्टकेहोपचितं हि विद्धि महात्मनः प्राणभृतः शरीरे //
ghrāṇena gandhaṃ jihvayātho rasaṃ ca tvacā sparśaṃ manasā devabhāvam ityaṣṭakehopacitaṃ hi viddhi mahātmanaḥ prāṇabhṛtaḥ śarīre //
Know, O great-souled one, that within the body of the living being—the bearer of prāṇa—there is an eightfold accumulation: smell through the nose, taste through the tongue, touch through the skin, and the divine disposition (higher awareness) through the mind.
Indirectly, it frames embodied life as a structured, knowable system of faculties (senses and mind); such analysis supports Purāṇic cosmology where bodies arise from elemental and functional principles and dissolve back into them during pralaya.
By identifying how perception and mind operate, the verse underlines self-mastery: a king or householder should govern the senses (smell, taste, touch) and refine the mind toward devabhāva (higher, sattvic disposition) to act with dharma rather than impulse.
No direct Vāstu or temple-rule instruction appears here; ritually, it supports the idea that purification and worship must address the senses and mind—external offerings engage smell/taste/touch, while mantra and contemplation elevate the mind toward devabhāva.