The main problem of the atheistic person is they try to understand God with the reference point of their own limited bodies, mind and intellect.
In reality they cannot even understand how one blade of grass grows in real terms , if we ask them to create a blade in their laboratory they are lost .
Because the intellect and energies of someone or some aspect of nature is not fully conceivable to ourselves , still we see the evidence of it ..
What is the difficulty?
In his Bhagavat Sandarbha Jiva Goswami explains the energies and multifarious forms of Divinity..
It’s also explained how such forms and which particular forms appear before a particular devotee according to the relationship they have with the Lord …

Bhagavatam 10.64.26 .

“O almighty one, how is it that my eyes see You here before me? You are the Supreme Soul, whom the greatest masters of mystic yoga can meditate upon within their pure hearts only by employing the spiritual eye of the Vedas. Then how, O transcendental Lord, are You directly visible to me, since my intelligence has been blinded by the severe tribulations of material life? Only one who has finished his material entanglement in this world should be able to see You

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