The punch of the plum flower, or Moi Fah Kuen in Cantonese, is a series of movements of the Kung Fu by Siu Lam. The word Kuen literally means "punch"; But in the context of Kung Fu is the abbreviated form of the term Kuen Faat which is one of the many Chinese terms for "Kung Fu".

Kuen is also an abbreviated term for Kuen-Lo, series of models or forms of Kung Fu or movements. Moi Fah Kuen is often abbreviated to Fah Kuen, who means form of the flower.

The shape of the flower is very famous in the Siu Lam (Shaolin) Kung Fu southern. Many great Soule masters of the past, such as the great teacher Siulam Ng Mui, other great Siulam Masters such as Miu Hen, Fong Sai Yok and Wu Wai then were specialized in this form of the flower.

Fong Wing Chun (wife of Hung Hei Gung) was also an expert in this form of the flower, had from her teacher of her NG Mui, and it is likely that Fukien's white crane system and Hung Gar himself evolved from this form. Grandmaster Giuseppe Cucci through the principle of circularity in the execution of blocks and the use of closing and opening access of attacks wants to present the principles of fluidity and power characteristic of the Hung Gar style.

The SHKAI school teaches the Hung Gar style in the way it is still practiced in Hong Kong. Each form develops body coordination and breath control, their scope, from simple fundamentals, moves to complex techniques training mind, body and spirit together.

Kuen are composed of hundreds of movements, difficult to learn as a self-taught practitioner; it is, in fact, necessary to have the careful supervision of an expert. .