Nishu

“The devotee who realizes the personal God in a form will eventually realize Him also as the Omnipresent Formless Infinite. Arjuna, with the frontal vision of his two physical eyes, saw his divine guru Krishna standing before him on the field of Kurukshetra. Sri Krishna then opened the all-seeing spiritual eye of Arjuna. Being at one with the cosmic consciousness of Spirit, Krishna transferred his omnipresent vision to Arjuna, whose spiritual advancement had now prepared him to receive the awakening touch of the Guru’s bestowal of God-realization. It was then that Arjuna beheld the very form of Krishna metamorphose into an omnipotent image of the oneness of Krishna’s consciousness with the Infinite.”
― Paramahansa Yogananda, God Talks with Arjuna: The Bhagavad Gita: Royal Science of God-Realization