In martial arts novels,"five hearts to the sky" usually refers to five hearts: 1. Heart: The most important organ in the human body and also the center where the brain commands the entire body. Atrium: The part of the heart that receives blood and sends it through the veins to the body. " 3. The heart chamber refers to the part of the heart that is responsible for relaxation and contraction to provide oxygen and nutrients to the body. 4. Heart: It refers to the internal part of the heart, including the apex, heart chamber, and heart chambers. 5. Heart: The head of the heart, including the heart valve and the entrance to the heart chamber. "Five Hearts Facing Heaven" was one of the common images in martial arts novels. It represented the protagonist's ability to remain calm and calm in the face of a strong enemy and to show his inner determination and courage in order to achieve the goal of defeating the enemy.