The ZWDS I have been learning might from the Prehistory. It consists of two aspects: Fortunetelling and Philosophy.
From Fortunetelling point of view, we pay more attention to “pursue good fortune and avoid disaster”. For example, when there is a sign of house fire in someone’s ZWDS chart, we don’t want to wait to happen —— to show the accuracy of a Master. We just find out the reasons and the time of happening from the chart and take the necessary actions to avoid the fire. It’s kind of the directions of our life. I will focus on the actions we take after chart reading and also be prepared in our mind. I wouldn’t say that ZWDS is the Fatalism. It only becomes Fatalism if we do nothing afterwards.
Also, as different people with same chart would go into different directions in their life, we need to read the chart according to the personal circumstance.
Regarding the Philosophy side of ZWDS, we focus on the combinations of ZWDS and I-Ching, Genetics & Feng Shui etc.