In Zazen, the mind is not treated as an enemy to be suppressed, nor as a master to be obeyed, but as a field in which phenomena arise and pass away. Thoughts, emotions, and sensations are allowed to appear and disappear naturally, without being pursued or rejected. The practitioner neither clings to mental content nor struggles to eliminate it; instead, the mind simply witnesses what unfolds. This non-interference reveals the restless, discursive activity often called the “monkey mind,” while simultaneously loosening its grip. Over time, the mind’s habitual commentary becomes more transparent, and experience is seen more clearly, like clouds moving through an open sky.

This approach is often expressed as “just sitting” (shikantaza): the mind abides in alert, open awareness without a particular object, technique, or goal. Rather than concentrating on a single point, awareness remains spacious and inclusive, encompassing whatever arises in the present moment. The role of the mind here is to be awake and receptive, grounded in immediate experience yet not entangled in it. Thoughts and feelings are acknowledged but not elaborated upon, allowed to come and go without judgment. In this way, the mind functions as a clear mirror, reflecting all things without being altered by what it reflects.

Within this practice, the mind repeatedly returns to simple presence—upright posture, breathing, and wakefulness—whenever it notices distraction. This is not a forced effort to manufacture special states, but a gentle, continuous recollection of non-attachment and non-doing. As grasping and aversion are relinquished, the separation between observer and observed begins to soften. What Zen calls “no-mind” (mushin) or “Buddha-mind” is not something newly created, but the mind’s original, unobstructed nature becoming evident. Zazen thus allows the mind to settle into its inherent clarity and equanimity, revealing an already-present completeness rather than striving to attain something outside itself.