To become healthy is a thing . . . not that the man was not healthy. He has fallen diseased. You understand? When I say to become healthy, to become healthy does not mean that he was not healthy. He was healthy. Somehow or other, he is now diseased. So the "become" is applicable to the diseased or to the condition, not to the original.
So Rādhā-Kṛṣṇa or His expansions, They're original spirit. We are also original spirit. In contact with matter we are now diseased, therefore "To become" is applicable to the conditioned soul, not to the liberated. "To become . . ." The past, present and future is applicable within this dual world. In the spiritual world there is no past, present, future. There it is eternal. So "become" is applicable to us who are conditioned. Conditioned means by contamination of matter we are suffering. So we have to go to the healthy life, spiritual life. That is required.
"To become" is not applicable to anything of Kṛṣṇa's name, fame, form, paraphernalia, expansion. They are all transcendental and eternal. And you can also become one of them as soon as you are freed from this material contamination. That is practice of Kṛṣṇa consciousness. Yad gatvā na nivartante tad dhāma paramaṁ mama (BG 15.6).
If you practice Kṛṣṇa consciousness, and at the end of life if you continue, the next life you also become brahma-bhūtaḥ prasannātmā (BG 18.54). You also associate with the same. And there will be no distinction at that time—either Kṛṣṇa and Rādhā or all expansions—because They are all spiritual. Oneness. That oneness. Your question was that the oneness. Because there is no disagreement, there is no dissension. Everything is in harmony, spiritual harmony; therefore one.