Teaching is not the mere imparting of information but the cultivation of an inquiring mind which will penetrate into the question of what is religion and not merely accept the established religions, churches, and rituals.
Meditation is like a single log of wood. Insight and investigation are one end of the log; calm and concentration are the other end. If you lift up the whole log, both sides come up at once. Which is concentration and which is insight? Just this mind.
That which is nearest is least observed. The Atman is the nearest of the near, therefore the careless and the unsteady mind gets no clue to it. But the person who is alert, calm, self-restrained, and discriminating ignores the external world and, diving more and more into the inner world, realizes the glory of the Atman and becomes great.
A mind that is disciplined, controlled, is free within its own pattern; but that is not freedom. The end of discipline is conformity; its path leads to the known, and the known is never the free.