Matters needing attention of crystal pendulum

Note that when measuring the magnetic field of a place, a place or an object with a pendulum, you can experiment repeatedly and achieve the same result every time because the energy of these things is on the spot. But when measuring things, because things are abstract, not concrete, we just use our brains to adjust the magnetic field for testing. Therefore, the test should be especially quiet, pious, careful and cautious, and the result of the first test shall prevail, the first and last time. If the temporary energy has weakened or disappeared in the second test, doubts about the result of the first test will weaken its accuracy, and the result will be a "probability" result. This is the same as the divination in the Book of Changes, and it is the "final decision".

It should also be noted that the pendulum is highly efficient, but it is also easily influenced by people's "willpower". Therefore, public demonstration is absolutely inappropriate and should not be done in front of others. Otherwise, someone else's willpower will intervene, making the result of pendulum not objective.