Is divination useful?

Useful. Divination is a philosophy. You will see many cases in the process of learning, and then you can analyze the logic in these cases: what kind of reasons will produce what kind of results. Then you can draw some inferences about your life, and you can probably guess how things should be done and what dimension they will develop into. Of course, you can achieve this effect without learning divination, as long as your life experience is rich enough and you have enough knowledge. Therefore, this is a philosophy, just one of many world views and even three views.

If you don't teach yourself, you will find someone else to do divination. Forget it, it's just superstition.