"Tai" and "Pi" represent two concepts in the Book of Changes, indicating positivity and negativity respectively, such as connectivity and congestion, comfort and adversity, and kindness and evilness.
In ancient China, it was believed that everything in the universe was constantly involved in the cycle of evolution. At a certain critical point, two contradictory aspects within the matter will convert to each other.
The transformation from Pi to Tai reveals the rule guiding the evolution of matter, providing the spirit support and hope for people in frustration; it also symbolized a sense of crisis.
