What is a hidden lock in fortune telling _ What is a hidden lock in fortune telling?

What is modern help people unlock Yin and Yang?

A spell to adjust the magnetic field of feng shui gas field in family room.

In ancient times, there was a saying that "Yin and Yang fish were born with Yin and Yang tenons", and later generations renamed "Yin and Yang tenons" as "Yin and Yang locks". Yin-yang fish are commonly seen in the Yin-Yang diagram of Tai Chi, which is mostly used in geomantic omen such as yin houses, cemeteries, Taoist temples and the gates of large families to ward off evil spirits. Yin-yang lock is mainly used in the bedroom, where people live in one room, regulating the magnetic field of people's feng shui gas field and protecting fortune.