The nature of mind is flickering and unsteady. But we must to control the mind, the mind should not control us. At the present moment, the mind is controlling us. The mind is telling us, “Please, why not look at the beautiful girl?” and we look. It says, “why not drink that nice liquour?” and we say, “Yes” In this way, the mind is dictating, and we are following. Material life means being controlled by senses. Being controlled by the mind means being controlled by the senses, because the senses are the mind’s assistants.