One day Ramakrishna tried to instruct Naren on the identity of the individual soul with Brahman.
Naren recalled what happened afterward:
I did not relish eating, and felt as if somebody else were eating. Sometimes I lay down during a meal; after a few minutes I got up and again began to eat. The result would be that on some days I would take too much, but it did no harm. My mother became alarmed and said that there must be something wrong with me. She was afraid that I might not live long. When there was a slight change in this state, the world began to appear dream-like. While walking in Cornwallis Square, I would strike my head against the iron railings to see if they were real or only a dream. This state of things continued for some days. When I became normal again, I realized that I must have had a glimpse of the Advaita state. Then it struck me that the words of the scriptures were not false. Thenceforth I could not deny the conclusions of the Advaita philosophy.