The aesthetic impact of kaishu is deeply intertwined with the intricate technicalities of its brushwork, where each stroke is a carefully executed expression of the calligrapher’s skill and artistic vision. This essay will focus on analyzing the nuances of these individual strokes, demonstrating how they combine to form a visual language. We will begin by revisiting the “永字八法” (Yong character’s eight principles), which are the foundational strokes of kaishu. We will go beyond a mere description of the strokes to analyze the nuances of their execution, looking at the specific angles, speeds, and pressures required to achieve their intended forms. The emphasis is on how the brush moves across the paper, and the subtle transitions in each stroke.