“The common man does not know what deep thinking is. His thoughts run riot. There is a great deal of confusion in the mind sometimes. His mental images are very distorted. It is only thinkers, philosophers and Yogins who have well-defined, clear-cut mental images. They can be seen through clairvoyance very vividly. Those who practise concentration and meditation develop strong, well-formed mental images.
Most of your thoughts are not well-grounded. They come and slip away. They are, therefore, vague and indefinite. The images are not clear, strong and well-defined. You will have to reinforce them by clear, continuous and deep thinking. Through Vichara (ratiocination), Manana (deep reflection) and meditation, you will have to make the thoughts settle down and crystalise into a definite shape. Then the philosophical idea will become firm. Through right-thinking, reasoning, introspection and meditation, you will have to clarify your ideas. Then confusion will vanish. The thoughts will get settled and well-grounded.
Think clearly. Clarify your ideas again and again. Introspect in solitude. Purify your thoughts to a considerable degree. Silence the thoughts. Do not allow the mind to bubble. Let one thought-wave rise and settle down calmly. Then allow another thought to enter. Drive off all extraneous thoughts that have no connection with the subject-matter you are handling at the present moment.”