Matsya Purana — Account of the Manvantaras: Manus
अन्तरं चाक्षुषं चैतन् मया ते परिकीर्तितम् सप्तमं तत्प्रवक्ष्यामि यद्वैवस्वतमुच्यते //
antaraṃ cākṣuṣaṃ caitan mayā te parikīrtitam saptamaṃ tatpravakṣyāmi yadvaivasvatamucyate //
Thus have I recounted to you this Cākṣuṣa Manvantara. Now I shall expound the seventh, which is called the Vaivasvata (Manvantara).
It frames time in Manvantara cycles, transitioning from the Cākṣuṣa Manvantara to the seventh (Vaivasvata), a key structure used in Purāṇas to situate events around periodic cosmic changes.
Indirectly: by locating dharma and royal lineages within the Vaivasvata Manvantara, it prepares the narrative ground where kingly duties and human social order are taught as time-bound responsibilities in a specific cosmic era.
No direct Vāstu or ritual injunction appears in this verse; its significance is chronological—introducing the Vaivasvata Manvantara that later chapters may use as the temporal setting for rites, temple traditions, and dynastic histories.