Here the words yathedam asṛjad vibhuḥ clearly indicate that the Supreme, the great, almighty Personality of Godhead, created this entire material world with its different varieties of planets, stars and so forth. Atheists try to conceal the hand of God, which is present in every creation, but they cannot explain how all these creations could come into existence without a competent intelligence and almighty power behind them. Simply to imagine or speculate is a waste of time. In Bhagavad-gītā (10.8), the Lord says, ahaṁ sarvasya prabhavo: “I am the origin of everything.” Mattaḥ sarvaṁ pravartate: “Whatever exists in the creation emanates from Me.” Iti matvā bhajante māṁ budhā bhāva-samanvitāḥ: “When one fully understands that I create everything by My omnipotence, one becomes firmly situated in devotional service and fully surrenders at My lotus feet.” Unfortunately, the unintelligent cannot immediately understand Kṛṣṇa’s supremacy. Nonetheless, if they associate with devotees and read authorized books, they may gradually come to the proper understanding, although this may take many, many births. As Kṛṣṇa says in Bhagavad-gītā (7.19):

bahūnāṁ janmanām ante
 jñānavān māṁ prapadyate
vāsudevaḥ sarvam iti
 sa mahātmā sudurlabhaḥ

“After many births and deaths, he who is actually in knowledge surrenders unto Me, knowing Me to be the cause of all causes and all that is. Such a great soul is very rare.” Vāsudeva, Kṛṣṇa, is the creator of everything, and His energy is displayed in various ways. As explained in Bhagavad-gītā (7.4-5), a combination of the material energy (bhūmir āpo ’nalo vāyuḥ) and the spiritual energy, the living entity, exists in every creation. Therefore the same principle, the combination of the supreme spirit and the material elements, is the cause of the cosmic manifestation.