Taijiquan and baguazhang rely heavily upon Taoism. Both arts are the embodiment of Taoist principles: yin/yang & bagua diagram. To truly understand, use and communicate in these arts, you need to speak the language. This doesn't necessarily mean Chinese, but rather, Ancient Contemplative Taoism and martial theory.
A similar situation occurred in Star Trek The Next Generation where Picard meets a race that only communicates in references to events/incidents/people that are unique to their own own culture e.g. "Shaka when the walls fell..." Huh?
https://www.youtube.com/watch?v=2Q7fqg7WwIw - this is really useful
Sifu and myself share much a common familiarity with The Book of Five, The Way and Its Power, The Way of Chuang Tzu, The Art of War, The Tai Chi Classics (and many other books), so we can easily and readily refer to themes contained within those texts.