The warrior stands in meditation. This is because his meditation is in the moment, not out of it. He is standing at the centre of his life, he is not able sit on the edges of it.
He must live. When the moment comes, he must act. So he stands, ready to respond.
With his feet on the ground, he can feel desires and feelings rise from the world. Up, through his body; to his mind, where they take shape; and outwards, to the limbs, where they can be given back to the world through action.
Desires; our hopes of the day, the things we want and need, goals, dreams. They rise up from the earth, through the body, to the mind, and out through the limbs back into the world.
Emotions; feelings about the world, about how you’d like to be, about how you respond to what you’re seeing now, to what you saw yesterday, to what you might see tomorrow. They rise up from the earth, through the body, to the mind, and out through the limbs back into the world.
Passions; our fears, our anger, our joy, our hate, our love, the things which fill our hearts, energize us, electrify us, both giving us the will and the energy to live. They rise up from the earth, through the body, to the mind, and out through the limbs back into the world.
In this way, the warrior stands communing with the earth, communing with himself and his emotions, completely filled with life, always ready to act.