We can say Mahavisnu , as Adwaita Acarya, is calling Lord Krishna and Lord Balarama to help Him in His task of rectifying the misconceptions of the living brings in their pursuit of “fake Rasa “. Somehow or other the living beings being driven by their own free will have not made wise choices and are hopelessly entangled within the material responsive universes . The ecstatic moods of trancendental bliss displayed freely have been turned away from . Even the impersonal Brahman bliss has been compared to the water in a calves hoof print , whereas the rasa of the spiritual kingdoms are like unending, unlimited tumultuous oceans of loving bliss , especially within Goloka Vrndavana where the Queen of Vrndavana Srimati Radharani displays Her confidential pastimes with Krishna . Hare Krishna means an exchange of increasing trancendental love , and the waves of this ocean of love rise and fall and are reflected by the union and separation of Krishna with Radharani , although in the highest realms of prema vivarta union and separation are one .
So Maha Visnu calls Krishna to rescue the living beings in the material worlds , Krishna comes and brings with Him His trancendental abode of Vrndavana and importantly and essentially Srimati Radharani.
Sri Caitanya Mahāprabhu and Lord Krishna are one and the same , except , as Sri Caitanya Mahāprabhu , He is in the mood of Srimati Radharani and feels predominantly the extreme separation that Radharani feels when Krishna in not personally present. Krishna in Vrndavana is predominantly in union with Srimati Radharani in Vrndavana. These trancendental tattvas are explained very nicely and in more detail by Srila Gour Govinda Swami, the beloved disciple of Srila AC Bhaktivedanta Swami Prabhupada.
Within the Panca Tattva ,Srimati Radharani makes her indirect appearance as Gadadha prabhu, and Her more direct appearance as Sri Caitanya Mahaprabhu as Krishna has come to relish Srimati Radharanis moods of love that She feels for Krishna.
Srila Narada muni also assists Maha Visnu as the pure Vaisnava who is capable of distributing Krishna consciousness all over the world, Srila AC Bhaktivedanta Swami has demonstrated the power of the pure devotees.The original spiritual master is Balarama and Balarama has come as Nityananda prabhu who is the power and trancendental preaching powerhouse, Sri Caitanya Mahāprabhu tasked Nityananda prabhu to distribute Krishna consciousness throughout the universes.
Chanting the Holy names of God is the best programme to understand the Panca Tattva , Krishna, and Radharani as well as Goloka Vrndavana.This is understood only by going through Sri Caitanya Mahāprabhu and Nityananda prabhu and the Gaudia Vaisnava acaryas headed by Sri Rupa and Ragganatha Goswami’s.