Yin and yang are always in dynamic play when you walk. Every movement has each in it. Becoming aware of them in motion is step #1 towards cultivating deeper understanding.
Sometimes I feel like I’ve stared at the computer for too long and I need to take a break, maybe go for a walk. Often, when I do, it’s difficult to shift. It’s like I’m still looking at the computer while I’m walking. The eye muscles are stagnated in the position of staring at the computer. This stiffness in the eyes affects the whole body while trying to walk and loosen up. It’s like I’m fighting against myself. When I become aware that this is happening, the question of what to do about it comes up.
My first inclination is to move. Do some sort of exercise. Simply walking is good. Tai chi is good, of course, because you’re exercising your whole body, not just a single part. Tai chi walking is even better.
Here is something you might want to really think about as a practice goal when you’re doing tai chi: “the whole body moves as a single unit.” Part of moving as a “unit” is to coordinate movement with mind focusing on a particular point in the body as part of an initial stimulus to move the rest of the body.
For example, you might be able to move the eyes in circles while circling the body on a horizontal plane. As you move, the eyes are connected with the dantian (center point of body essentially) while turning in that circle pattern and focusing on as much detail in your view as you can. Let the eyes lead the rest of the body.
It may be difficult at first to smoothly coordinate the eye movement with the rest of the body. But with practice the physical—timing and pace—improve.
Along with that, if you have a mind to focus on it, will be an awareness of the energy connecting all those parts together. Even though they’re separate parts, something is connecting them as a single unit and that’s the energy we call “qi.”