Chi
Kung Culture Society of TAIPEI
[note: restructure answer focusing on the concept of the life systems and the good/bad effects of pregnancy and illnesses on it - fetus as a parasite]
The custom focuses on those new mothers who were weak and had inadequate pre-natal nutrition. These mothers are advised to observe the custom of dwo yeh dz to strengthen and restore their body systems which were weak before their pregnancy.
Having a baby is a chance to restructure our chi system because it opens our second life system (a standby system which provides the forces of recreating the basic quality of our body from bad to good as if we are being reborn. The second life system is directly related to the "sen tien chi system" (our spare life energy system) using the original chi or the transcendental forces of creation of life which will lead us into a state of rejuvenation or open up our supernatural power system. Krishnamudi, an example of this process, developed his supernatural power after long and painful illnesses (from a fever which lasted more than several weeks, triggering the process of rejuvenating which is required to develop supernatural power). Therefore, dwo yeh dz is a process aiming at changing the basic physical quality of a new mother who had inadequate pre-natal care from bad to good. In this way, if she receives a good dwo yeh ts, she will gain back her energy much quicker. In other words, if she had taken enough measures long before her pregnancy to practice chikung to strengthen her whole body, and received a good dwo yeh dz practice after giving birth to a baby, she may probably become rejuvenated, look younger, stronger, more optimistic and powerful. If she fails to do this, when she is older she will experience hormone problems, bone problems (osteoporosis), ovarian problems, menopause problems (aches and pains - both physical and mental), and these problems will trigger a lot of serious diseases like cancer or some immune system problems.
Pregnancy uses all a woman's chi and strength, so after giving birth the energy patterns around her abdomen will be the coldest because so much energy has gone away. The new mother is unable either to restructure herself regain her yin-yang balance easily, both of which take a long time to accomplish. It is very important for a woman to practice chikung several years before she plans to have children.
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