This demo of silk reeling shows a basic jibengong, suitable for "100 days" practice. When you reach that level it is often suggested you stop practicing it and just do the form.
In a famous interview with Jarek Szymanski, Feng Zhi-Qiang said, "All Taiji styles emphasize Opening and Closing (Kai-He), Empty and Solid (Xu-Shi), Hardness and Softness (Gang-Rou), Contracting and Opening (Qu-Shen), Yin and Yang, etc. Silk Reeling Power appears in all Taiji styles but Chen style emphasizes it more than other schools and the round movement of all parts of the body is its feature. Other schools of Taiji pay more attention to Opening and Closing. Actually all martial arts contain circular and round, Hunyuan movements. In Xingyiquan this feature is described by Drilling (Zuan), Wrapping (Guo), Twisting (Ning), Overturning (Fan)."
In a famous interview with Jarek Szymanski, Feng Zhi-Qiang said, "All Taiji styles emphasize Opening and Closing (Kai-He), Empty and Solid (Xu-Shi), Hardness and Softness (Gang-Rou), Contracting and Opening (Qu-Shen), Yin and Yang, etc. Silk Reeling Power appears in all Taiji styles but Chen style emphasizes it more than other schools and the round movement of all parts of the body is its feature. Other schools of Taiji pay more attention to Opening and Closing. Actually all martial arts contain circular and round, Hunyuan movements. In Xingyiquan this feature is described by Drilling (Zuan), Wrapping (Guo), Twisting (Ning), Overturning (Fan)."