Yoga Sūtra Chapter Three verse 26
भुवज्ञानं सूर्ये संयमात् ॥२६॥
bhuvana-jñānaṃ sūrye saṃyamāt ||26||
Complete restraint on the sun, knowledge of the world.
bhuvana - world, earth; a being, living creature, man, mankind; place of being, abode, residence; causing to existjñāna - knowing; knowledge; higher knowledgesūrya - the sun or its deity; a symbolical expression for the number ‘twelve’; one of the original Vedic triad; in later mythology Sūrya is identified with Savitṛ as one of the 12 Ādityas or emblems of the Sunsaṃyama - complete restraintCommentaries and Reflections
Commentary by T Krishnamacharya:
Commentary by TKV Desikachar:
Commentary by S Ramaswami:
“By Saṃyama on the sun comes knowledge of the universe.
We now have in the next three Sūtras, Bhūta Siddhi or master of the knowledge within the universe.
Some commentators say this takes place within the body.
Vyāsa’s 7 Loka can be compared to the 7 Cakra
i.e, the Macrocosm to the Microcosm.
Some people say that only the first paragraph of Vyāsa’s commentary is original.
Because the later parts are said to be the Jainist rather than Vedic and are therefore unacceptable.
Bhuvana can also be the space between the three Loka from the earth up to the Svaḥ Loka.
However whether the experience is in Citta Ākāśa or Bhūta Ākāśa it cannot be termed a Vikalpa.
Some say it is a Bhūta Ākāśa.
You may experience it by inner concentration but the Loka exist in space.
In fact worshipping and gazing at the sun is part of the daily Pūjā and prayer.”