Guru signifies 'information'. Information here implies the information on 'oneself' or 'Atma. 'Information' here doesn't mean the information on the actual world. Put the information that you acquired in your school, college, or the information you derived from the teachings of life too to the side. Here we are discussing the information on 'oneself'. You have gotten entirely learned of the outside world at this point. Most likely on that. Yet, forget...