This is something called "walking meditation." The goal is to learn to be aware of each and every movement and feeling. I know it seems ridiculous, but it does change the way you experience walking.
Jon Kabat-ZinnFor men and women alike, this journey is a the trajectory between birth and death, a human life lived. No one escapes the adventure. We only work with it differently.
Jon Kabat-ZinnDying without actually fully living, without waking up to our lives while we have the chance, is an ongoing and significant risk.
Jon Kabat-ZinnWhen people say "Let it go," what they really mean is "Get over it," and that's not a helpful thing to say. It's not a matter of letting go - you would if you could. Instead of "Let it go," we should probably say "Let it be"; this recognizes that the mind won't let go and the problem may not go away, and it allows you to form a healthier relationship with what's bothering you.
Jon Kabat-Zinn