Swami Vivekananda - Memoirs of Manmatha Nath Ganguli

One day we were sitting in the right hand room of the Math facing the Ganga. It was generally called the music-room. Sadhu Nag Mahashaya entered the room. He had a dhoti and a shirt on. His dress was anything but neat. His hair was unkempt. His eyes were a little red as if he was intoxicated and the look was rather vacant. He stood near the door within the room and with folded hands said, "You are Narayana — Narayana in a human form. The Master said so. My salutations to you." For some time he stood there as still as a statue.

Swamiji looked at us and said, "Look, engrave this scene in your memory. You will never see this again." Now I think it must have been a state of samadhi. When Nag Mahashaya opened his eyes again, Swamiji said, "Please, tell them something of the Master." Swamiji did not rise himself nor did he ask him to sit. Such attempt would have jarred the ecstatic mood in which he was at that time, and Nag Mahashaya himself would have been very uncomfortable.

Sadhu Nag Mahashaya suddenly smiled the heavenly smile of the gods who have the vision of Shiva's world. He half raised his right hand and said, "It is this, it is this." Every one felt a charge of spiritual energy and the atmosphere of the room was tense with awe and reverence. Then he went out as suddenly as he had come.

(Memoirs of Manmatha Nath Ganguli, Vedanta Kesari, January & April 1960)