How can a father or a guru become the disciple of his disciple or son or daughter? The incident of Raghunandana Takura (narrated by Mahanidhi Maharaja) is instructive in this regard. It roughly goes like this. Raghunandana was the young son of Mukunda Dasa in Sri Caitanya Mahaprubhu’s time. Mukunda was called away and instructed his son to be sure to “make the Deity eat.” Raghunandana rang the bell and offered his prepared raja-bhoga to the Deity of Gopinatha. “Raghunandana began crying when he saw the untouched food remaining on the Deity’s plate. He feared his father’s anger for his inability to “make the Deity eat.” Gopinatha couldn’t resist the child’s intense devotion. So the Lord ate everything on the plate, leaving no remnants. “Upon returning, Mukunda asked for Gopinatha’s mahaprasadam. Raghunandana said the Deity ate everything. Astonished, Mukunda told his son to make the offering again. From a hidden place, Mukunda watched in total amazement as Raghunandana offered a laddu to Gopinatha. But the Lord only took half a laddu. Mukunda understood that the Deity only took half because He was still full from eating the lunch offering. Choked with divine emotion in appreciation of his pure devotee son, Mukunda embraced Raghunandana. Later in Puri, Lord Gauranga asked Mukunda, “Who is the father and who is the son?” Mukunda said, “Raghunandana is definitely my father. Because he has given me Krishna bhakti and showed me pure Krishna consciousness.”
The Guru is the Father is the Son.