I remember a story that I heard/read long ago that Ramakrishna Paramahamsa told Swami Vivekananda that what you are seeing before is the same Rama and Krishna who incarnated earlier.
Is it recorded in any biographies? If yes, is it true in advaitic sense that everything is one? Or did Ramakrishna Paramahamsa meant he was incarnation of Vishnu? Any other instances where he said similar thing?