B.G 11.47
The Auspicious Lord said:
O Arjuna, by my grace, this supreme form has been shown to you through my inner power, brilliant, infinite, universal, original, which has not been seen before by anyone other than you.
Gīta Tātparya 11.47
'Viśva' - the Lord possessing complete qualities. As per the testimonial from Brahmāṇḍa Purāṇa: Brahma, Rudra, and Indra is the hierarchical sequence.
"He is called Viśva because he is the Lord possessing complete qualities."
- stated thus in the Padma Purāṇa.
By the phrase "not seen before by anyone other than you", it is known that it was seen only through Indra’s body. The phrase implies comparison to those inferior to you. Even by them, it was likewise not seen.
"Brahmā, the four-faced, first saw the universal form. Rudra saw it by a hundredth part of that, and Indra by a hundredth part of that. Just as Indra formerly saw it, Arjuna too, being such, saw it. Others beheld only portions of it in order."
-stated thus in the Brahmāṇḍa Purāṇa.
