Part one Generally speaking, we can define the four substances we introduce into our bodies in breathing, drinking, eating, and absorbing impressions as the four elements of air, water, earth, and fire, respectively. The analogy to the four elements is limited. Its function is to illustrate and explain. One can learn from it but must be careful not to over-stretch the parallels. The goal here is to convey certain knowledge, to be precise in its formulation and presentation, and to facilitate its development and implementation. We tend to see the elements as substances with known properties and effects. Yet, the elements can be seen as different kinds of processes, and be distinguished by their speed: from the slowest to the fastest - water, earth, air and fire. In fact, we can define the elements as pointing to the relative speeds of movements and vibrations, and even as acceleration or deceleration; Fire and air as upward movement signify acceleration, while water an...