Wu Li taught Liu Yuanbo the Standing Three-body Position in the room, which is the most fundamental and essential stance in Xingyi Fist.
"The most important aspect of the Three Body Formation is to strengthen the spine. Once the spine is well-trained, it drives the entire skeletal system, and your bones will be well-trained too," Wu Li positioned Liu Yuanbo into a Three Body Formation, then pressed his fingers onto Liu Yuanbo's spine and pushed down vertebra by vertebra, helping Liu Yuanbo to feel how the spine influences the whole body.