1Radha Krishna = "īśvaraḥ paramaḥ kṛṣṇaḥsac-cid-ānanda-vigrahaḥanādir ādir govindaḥsarva-kāraṇa-kāraṇamKṛṣṇa who is known as Govinda is the Supreme Godhead. He has an eternal blissful spiritual body. He is the origin of all. He has no other origin and He is the prime cause of all causes.there are so many controller ( ISHWARA), but the supreme controller is Krishna. Hope your inquisitiveness will end here. "