Matsya Purana — Maya’s Nectar-Reservoir in Tripura and the Revival of the Slain in the Tripur...
स विषाणाभ्यां त्रैलोक्यं रथमेव महारथः प्रगृह्योद्वहते सज्जं कुलं कुलवहो यथा //
sa viṣāṇābhyāṃ trailokyaṃ rathameva mahārathaḥ pragṛhyodvahate sajjaṃ kulaṃ kulavaho yathā //
Grasping it with his horns, that great chariot-warrior bore the three worlds as though they were a chariot—like a mighty charioteer lifting and carrying a well-yoked car, or like one who upholds a lineage (kula).
It presents Pralaya as a time when the cosmos needs divine support: Lord Matsya is portrayed as physically upholding the three worlds, emphasizing preservation amid dissolution.
By comparing Matsya’s sustaining power to a ‘kula-vaha’ (upholder of a lineage), it idealizes the king/householder as one who bears responsibility—protecting dependents, maintaining continuity, and keeping the social ‘yoke’ well-ordered.
No direct Vastu or ritual procedure is stated; the key takeaway is symbolic—‘support’ and ‘proper yoking’ function as metaphors for correct alignment and stability, ideas later echoed in Vastu principles of balance and load-bearing order.