حين يعمل الذهنُ على السطح يكون نشاطه عشوائيًّا، وبصيرته باهتة وصورُه مكرّرة. لكن بالممارسة والخبرة يتحرّر العقلُ من جمجمته، فيظهر الجديد الطازج كأنه يُرى للمرة الأولى. و

“Operating superficially, the mind is random in its activity and stale in its insights and images. However, with practice and experience the mind is freed from the skull, and the fresh and new can appear as though for the first time. It”Matsuo Basho — A Zen Wave: Basho's Haiku and Zen (2003)