Matsya Purana — Characteristics of Dvāpara and Kali Yugas
राजानः शूद्रभूयिष्ठाः पाषण्डानां प्रवृत्तयः काषायिणश्च निष्कच्छास् तथा कापालिनश्च ह //
rājānaḥ śūdrabhūyiṣṭhāḥ pāṣaṇḍānāṃ pravṛttayaḥ kāṣāyiṇaśca niṣkacchās tathā kāpālinaśca ha //
Kings will become largely śūdra-like in conduct; heretical sects will proliferate. There will be many who wear ochre robes, along with outcast wanderers, and also skull-bearing ascetics (kāpālikas).
This verse is not about cosmic dissolution (pralaya); it describes Kali-yuga social symptoms—degradation of rulers and the spread of heterodox or disruptive religious movements.
It functions as a warning that kings must uphold rajadharma—self-control, protection of varṇa-āśrama order, and support of legitimate dharma—otherwise society fills with disorderly factions and unstable leadership.
No Vāstu or temple-building rule is stated here; the ritual takeaway is socioreligious—external marks like ochre robes can become common without inner discipline, so dharma must be judged by conduct and adherence to proper rites.