Small talk of “Liu He” 六合
"The six combinations are the soul of Xinyiquan and an essential lesson in various styles of martial arts. As the author lacks expertise, I can only offer a humble discussion. As for in-depth and precise analysis, that is left to the experts in the field. combinations can be divided into internal and external harmonies. The internal harmonies involve the unity of the heart and intention, intention and Qi (energy), and Qi and strength. The external harmonies involve the unity of hand and foot, shoulder and hip, and elbow and knee. Many martial artists commonly mention these in their writings, indicating their deep understanding of the profound meaning of the Six Harmonies.