Grounding in posture: zazen as the foundation

Let the body be upright, stable, and settled before everything else.

Why it works

Dogen famously wrote that the practice of zazen is not separate from the practice of Buddhism — the posture is not a container for the practice, it is the practice. Physically, an upright spine and a balanced, grounded seat create a body state that is alert without being tense, which is the physiological prerequisite for sustained open awareness. Slouching collapses alertness; rigidity creates the tension the practice is trying to release.

How to do it

1. Sit on a zafu (cushion) or chair so the hips are level with or slightly above the knees, allowing the spine to naturally stack.
2. Let the crown of the head lift slightly, chin tucked, face relaxed, eyes open and downcast at a 45-degree angle.
3. Place hands in the dhyana mudra (right hand resting in left, thumbs lightly touching) at the lower belly.
4. Hold the posture continuously without adjusting unnecessarily — returning to it each time you notice you have slumped.

Evidence

Upright, stable posture supporting sustained attention is consistent with general meditation research. The specific Zen postural conventions are traditional standards rather than optimized, studied variables. (mechanistic)

The attention benefit of a stable, alert posture is plausible; the precise Soto Zen postural forms are convention, not a separately validated configuration.

Common mistake

Treating discomfort as something to push through at any cost, resulting in sessions defined by pain management rather than open awareness. Stability is the goal, not endurance.