yan-madhya-gato bhagavāṁs tapatāṁ patis tapana ātapena tri-lokīṁ pratapaty avabhāsayaty ātma-bhāsā sa eṣa udagayana-dakṣiṇāyana-vaiṣuvata-saṁjñābhir māndya-śaighrya-samānābhir gatibhir ārohaṇāvarohaṇa-samāna-sthāneṣu yathā-savanam abhipadyamāno makarādiṣu rāśiṣv aho-rātrāṇi dīrgha-hrasva-samānāni vidhatte
yat - of which (the intermediate space); madhya-gataḥ - being situated in the middle; bhagavān - the most powerful; tapatām patiḥ - the master of those that heat the whole universe; tapanaḥ - the sun; ātapena - by heat; tri-lokīm - the three worlds; pratapati - heats; avabhāsayati - lights; ātma-bhāsā - by its own illuminating rays; saḥ - that; eṣaḥ - the sun globe; udagayana - of passing to the northern side of the equator; dakṣiṇa-ayana - of passing to the southern side of the equator; vaiṣuvata - or of passing through the equator; saṁjñābhiḥ - by different names; māndya - characterized by slowness; śaighrya - swiftness; samānābhiḥ - and by equality; gatibhiḥ - by movement; ārohaṇa - of rising; avarohaṇa - of going down; samāna - or of staying in the middle; sthāneṣu - in positions; yathā-savanam - according to the order of the Supreme Personality of Godhead; abhipadyamānaḥ - moving; makara-ādiṣu - headed by the sign Makara (Capricorn); rāśiṣu - in different signs; ahaḥ-rātrāṇi - the days and nights; dīrgha - long; hrasva - short; samānāni - equal; vidhatte - makes.
Lord Brahmā prays in his Brahma-saṁhitā (5.52):
yac cakṣur eṣa savitā sakala-grahāṇāṁ
rājā samasta-sura-mūrtir aśeṣa-tejāḥ
yasyājñayā bhramati saṁbhṛta-kāla-cakro
govindam ādi-puruṣaṁ tam ahaṁ bhajāmi
“I worship Govinda, the primeval Lord, the Supreme Personality of Godhead under whose control even the sun, which is considered to be the eye of the Lord, rotates within the fixed orbit of eternal time. The sun is the king of all planetary systems and has unlimited potency in heat and light.” Although the sun is described as bhagavān, the most powerful, and although it is actually the most powerful planet within the universe, it nevertheless has to carry out the order of Govinda, Kṛṣṇa. The sun-god cannot deviate even an inch from the orbit designated to him. Therefore in every sphere of life, the supreme order of the Supreme Personality of Godhead is carried out. The entire material nature carries out His orders. However, we foolishly see the activities of material nature without understanding the supreme order and Supreme Person behind them. As confirmed in Bhagavad-gītā, mayādhyakṣeṇa prakṛtiḥ: material nature carries out the orders of the Lord, and thus everything is maintained in an orderly way.