"Avoid scattered thinking. Often people do not notice that many thoughts rage simultaneously within them. As they swarm about like flies, it is impossible to discern which thought has the most significance. This circumstance must be studied. Future apparatuses will demonstrate the harm of such confused thinking. It would be better not to think at all than to permit such confusion within oneself, for it is a kind of madness.
"You may ask, What measures can help? Do not seek outside yourself for forcible means, but rather observe your thinking, so that you can naturally purify it. When man becomes aware of confusion in his thinking, he should evaluate his thoughts, to determine which are the most needed.
"It is not easy to follow little insects in the depths of the consciousness. They can disfigure any beautiful thought. But if man will assume the task of learning the dangers of scattered thinking, he may begin little by little to banish extraneous thoughts.
"Clarity of thought is very necessary for thinking about the Supermundane World. One does not prepare laboratory ingredients with dirty hands; likewise it is impermissible to approach the high chemisms of the Supermundane World with a soiled mind. People should think more purely about the higher worlds.
"The Thinker advised His disciples to think about the Supermundane as if participating in it personally." Supermundane IV