Matsya Purana — The Array of the Gods: Description of the Vaiṣṇava Host and the Lokapālas
चतुर्षु युक्ताश्चत्वारो लोकपाला महाबलाः स्वासु दिक्षु स्वरक्षन्त तस्य देवबलस्य ते //
caturṣu yuktāścatvāro lokapālā mahābalāḥ svāsu dikṣu svarakṣanta tasya devabalasya te //
Stationed in the four quarters, the four mighty Lokapālas guarded their own directions, protecting that divine power.
It emphasizes cosmic order and protection: even amid vast divine forces, the quarters are safeguarded by appointed guardians, a theme often invoked in Purāṇic descriptions of maintaining order through upheavals like pralaya.
It models delegated guardianship: just as Lokapālas protect their assigned directions, a king should appoint capable protectors for regions and a householder should responsibly safeguard their sphere of duty (svadharma) without neglect.
Directional guardianship underlies Vāstu and ritual orientation: rites, temple layouts, and protective ceremonies often invoke the quarters and their guardians (dikpālas) to secure the space and maintain auspicious order.