The mind is in spinning wheels at the
Navel, heart, throat, head.
The connecting shaft is emptiness.
Without an unobstructed route,
Energy cannot flow.
People search for the sacred and are told it is within themselves. It is sometimes difficult to see how literally the sages mean that. They see the mind as existing in other areas of the body in addition to the brain. These centers, nominally functional in the average person, are called chakras or wheels by those who follow Tao. Through meditation, one becomes acquainted with each of them and learns how to release power so profound that one is literally divine.
The concept of void is central to many philosophies including that of Tao. However, it seems so abstract at times. Here void has a functional role. The pathway connecting the energy centers of the mind is like a long shaft beginning from the perineum and ending at the top of the head. If not for emptiness, or hollowness of this shaft, the sacred energy of the body could not be conducted.
All the diversity of our lives is merely a manifestation of our minds, expressed through the turning of the various wheels within ourselves. The more they turn, the more complex circumstances and thinking become. However, if we want simplicity and tranquility, we need only go to the center of the spinning mind where it is empty and still. Thus it is said that diversity comes from the revolving of the wheels and origins come from the central void.