When One's Thinking Is Not Clear Enough, One Should Cultivate More Meditative Concentration

If your train of thought is not clear enough, it means you lack meditative concentration (samādhi), and you should cultivate more concentration to make your thinking clearer. When the power of concentration is insufficient, the mind consciousness cannot follow a single main thread in its deliberation, and it will become distracted in all directions, without any focus. It is just like qi channels not running along a single line but darting about everywhere within the body. Only a person with strong logical thinking ability, relying on powerful meditative concentration, can achieve single-pointedness—like an awl driven deep into a single point. A person without the power of concentration is like a wooden board laid flat on the ground, leaving no trace.