Those who are atheistic, i.e., who do not believe in Visnu, or who only recognize the impersonal part of Krsna as the Supreme, cannot have the divine vision. BG 1972 purports

Expressions researched:
"Those who are atheistic, i.e., who do not believe in Visnu, or who recognize only the impersonal part of Krsna as the Supreme, cannot have the divine vision"

BG Chapters 7 - 12

Those who are atheistic, i.e., who do not believe in Viṣṇu, or who recognize only the impersonal part of Kṛṣṇa as the Supreme, cannot have the divine vision. It is not possible to decry Kṛṣṇa and at the same time have the divine vision.

BG 11.48, Translation and Purport:

O best of the Kuru warriors, no one before you has ever seen this universal form of Mine, for neither by studying the Vedas, nor by performing sacrifices, nor by charity, nor by pious activities, nor by severe penances can I be seen in this form in the material world.

The divine vision in this connection should be clearly understood. Who can have divine vision? Divine means godly. Unless one attains the status of divinity as a demigod, he cannot have divine vision. And what is a demigod? It is stated in the Vedic scriptures that those who are devotees of Lord Viṣṇu are demigods (viṣṇu-bhaktāḥ smṛtā devāḥ). Those who are atheistic, i.e., who do not believe in Viṣṇu, or who recognize only the impersonal part of Kṛṣṇa as the Supreme, cannot have the divine vision. It is not possible to decry Kṛṣṇa and at the same time have the divine vision. One cannot have the divine vision without becoming divine. In other words, those who have divine vision can also see like Arjuna.

The Bhagavad-gītā gives the description of the universal form. Although this description was unknown to everyone before Arjuna, now one can have some idea of the viśva-rūpa after this incident. Those who are actually divine can see the universal form of the Lord. But one cannot be divine without being a pure devotee of Kṛṣṇa. The devotees, however, who are actually in the divine nature and who have divine vision, are not very much interested in seeing the universal form of the Lord. As described in the previous verse, Arjuna desired to see the four-handed form of Lord Kṛṣṇa as Viṣṇu, and he was actually afraid of the universal form.