Golden section refers to dividing a line segment into two parts, so that the ratio of the length of the original line segment to the longer part is the point of golden section. Two such points are approximately equal to 0.618:1

The body also has a golden section:

The kneecap is the golden section of thigh and calf;

Elbow joint is the golden point of arm;

The navel is the golden point of human body.