All knowing becomes knowledge. The moment it becomes knowledge, drop it. It is just like dust gathers on the mirror; every day you have to clean it. On the mirror of your mind dust gathers, dust of experience: it becomes knowledge. Clean it. That’s why every day meditation is needed. Meditation is nothing but cleaning the mirror of your mind. Clean it continuously! If you can clean it every moment of your life, then there is no need to sit separately for meditation.