Anything seen cannot be real. That is the truth.

Ramana Maharishi:  Visvatma darsana is visvarupa darsana i.e., the universal Self of the cosmic Self is the cosmos. Sri Krishna started the discourse in Chapter II, saying, “I have no form”. In Chapter XI, He says, “See my form as the Universe”. Is it consistent? Again he says, “I transcend the three worlds”, but Arjuna sees the three worlds in Him. Sri Krishna says, “I cannot be seen by men, Gods, etc.”; yet Arjuna sees himself and the Gods in Him. No one could see and yet Arjuna was endowed with divine sight to see Him. Does it not look a maze of contradictions? The answer is that the understanding is wrong. Sthula dristi on the physical plane is absurd. Jnana dristi (subtle understanding) is necessary. That is why Arjuna was given divya chakshuh (divine sight). Can such sight be gross? Will such interpretation lead you to a right understanding?
Sri Krishna says Kalosmi, ‘I am Time’. Does Time have shape? Again if the universe be His form should it not be one and unchanging? Why does He say to Arjuna, “See in me whatever you desire to see?” That means that His form is according to the desires of the seer. They speak of ‘divine sight’ and yet paint the scene, each according to his own view. There is the seer also in the seen. What is all this? Even a mesmerist can make you see strange scenes. You call this a trick, whereas the other you call divine. Why this difference? Anything seen cannot be real. That is the truth.