What does palm reading mean?

The joints correspond to palm reading and fortune telling.

Left thumb click: the lowest joint of left index finger (Daan), the tip of left index finger (lingering), the tip of left middle finger (happy), the tip of left ring finger (bare mouth), the root of left ring finger (Xiaoji) and the root of left middle finger (empty dead).

Haha, typing is very hard, and I finally answered. hope this helps