What are the two crescent-shaped things thrown on the ground in the temple? What do you mean, one up and one down?

In the temple, two crescent-shaped plaques were thrown on the ground to test the meditation of practitioners. "Jade" refers to two crescent-shaped golden locks, also known as "golden locks". When chanting Buddhist scriptures and mantras, practitioners throw "symbols" into the ground to test the meditation skills of practitioners. If the "blessing" falls off, jumping, rolling and turning continuously, or even jumping an inch high for a long time, it shows that the yogi is mentally stable and has fewer distractions and delusions. On the contrary, it means that practitioners have more distractions and delusions and lack of kung fu. One is facing up and the other is facing down, which shows that Yin and Yang are in harmony, that is, the meditation kung fu of practitioners has reached a state of "unable to remember".