In Tai Chi & in Qigong, we are always moving forward, backward, left and right. If you can understand the differences and similarities between 'ordinary' walking, and Tai Chi & Qigong walking, it makes learning those arts easier. How you step one pace forward when walking. You place (e.g.) the right heel and move the weight forward towards the ball of the right big toe. As the weight transfers forwards on to the ball of the right foot, the body elongates on a vertical axis.