Skanda Purana — Mahesvara Khanda, Shloka 45
शुभं निरुपमं स्थानं तदूर्ध्वं संप्रकाशते । भूर्भूवःस्वरिति प्रोक्तं त्रैलोक्यं कृतकं त्विदम्
śubhaṃ nirupamaṃ sthānaṃ tadūrdhvaṃ saṃprakāśate | bhūrbhūvaḥsvariti proktaṃ trailokyaṃ kṛtakaṃ tvidam
在其上方，显现一处吉祥无比、无可比拟的境地，光明灿然。所谓“Bhūr、Bhuvaḥ、Svaḥ”，即三界之名；而此三重领域称为“kṛtaka”（有造、所成）。
Lomaharṣaṇa (Sūta) to the sages (deduced from Māheśvara-khaṇḍa framing)
Scene: A vertical cosmic diagram: three luminous strata labeled Bhūr, Bhuvaḥ, Svaḥ, with an even brighter, auspicious realm above; the ‘constructed’ worlds appear as architected spheres, while the upper station is pure radiance.
FAQs
It distinguishes the familiar three worlds from higher, subtler states, suggesting that spiritual aspiration reaches beyond ordinary cosmological limits.
No specific site; the verse uses Vedic cosmological terms (Bhūr-Bhuvaḥ-Svaḥ).
None explicitly, though ‘Bhūr-Bhuvaḥ-Svaḥ’ is widely used in Vedic recitation contexts.