天以阴阳五行化生万物，气已成形。男女结合，新生出现。天为一大天，人为一小天，拳脚阴阳结合，五行和化，而形意拳产生招法技击。

The heaven creates everything by separating as Yin and Yang, the five elements. And the Qi creates the shapes. The male consort with the female, so comes the newly born baby. Heaven is very big, and the human is a comparatively small heaven. The fist and the foot are combining as Yin and Yang, with five elements. while Xingyi Quan creates the combat forms.