Matsya Purana — Pṛthu
तथैव साब्रवीद् भूमिर् दुदोह स नराधिपः स्वके पाणौ पृथुर्वत्सं कृत्वा स्वायम्भुवं मनुम् //
tathaiva sābravīd bhūmir dudoha sa narādhipaḥ svake pāṇau pṛthurvatsaṃ kṛtvā svāyambhuvaṃ manum //
So too did the Earth speak. Then that lord of men milked her, having made Svāyambhuva Manu the calf, and taking Pṛthu as the milker in his own hand (as the instrument of milking).
It reflects a creation-and-order motif: the Earth yields resources when properly approached under dharma, emphasizing cosmic order rather than Pralaya.
It presents the ideal king as one who lawfully ‘draws forth’ prosperity from the land—organizing resources for the people without violence or exploitation, with Manu (law/order) as the guiding principle.
No direct Vāstu or temple rule is stated; the key ritual-symbolic idea is the structured ‘milking’ metaphor (calf, milker, vessel), often used to frame orderly extraction and offering of Earth’s produce.