What was the system of ideas on which Taoism was based?

Taoism is based on the concept of the "Tao" or "Way," which is the fundamental principle that underlies and unites all aspects of the universe. It emphasizes living in harmony with the Tao, advocating for simplicity, spontaneity, and humility. Central to Taoism are ideas of balance, particularly the interplay of opposites as represented by the yin-yang symbol. Additionally, it promotes the practice of wu wei, or effortless action, encouraging individuals to align with the natural flow of life rather than resist it.