What does the "watershed" in life mean?

The "watershed" of life is the dividing line and turning point of life.

Extended data:

Watershed originally refers to the mountains or highlands that separate two adjacent watersheds.

In nature, mountains and plateaus are the most watershed areas. The ridge line of watershed is called watershed line, which is the dividing line between adjacent watersheds, and is generally the connecting line of the highest point of watershed.

According to morphology, it can be divided into two categories: symmetric watershed and asymmetric watershed. The watershed line of the symmetrical watershed is located in the center of the watershed, and the slopes on both sides have the same steps and lengths. The watershed line of the asymmetric watershed is biased to one side of the watershed, and the slopes on both sides are asymmetric. In nature, symmetric watershed is extremely rare, while asymmetric watershed is widely developed.

But later, watershed often has a figurative meaning, which means the main dividing line of things.

References:

Baidu encyclopedia-watershed