Почему бхакти называют гухья-видьей и в чём разница между самой бхакти и тем, что порождает бхакти в другом?

«guru that means the will of krishna in the world so that this is connected to the second question uh madhav pru asked he said in madhurya karambini verity said that bhakti is called guya vidya Confidential knowledge. And it has two types. Bhakti, Guya Vidya has two types. That is Bhakti and the initiator of Bhakti. So, what does that mean? So, this is described in Bhagavata Sandarbara of Jeeva Goswami.»