There is nothing dangerous about learning!
The danger is the human heart. When you succeed in learning, you want to use it to seek fame, wealth and other things that are beneficial to yourself.
Of course you will be sent to heaven!
To give a simple example, after learning Feng Shui (really learning the essence) and using Feng Shui to adjust a person's luck, then the person will get wealth that he should not have, etc., but you have to know , luck will not come out of nothing, if he gets it, you will have to supply it to him, and if there is loss, what you lose will only be more than what he gets (of course, if he has great blessings, there will be no problem. The premise is that you must be able to observe other people's fortunes and just follow the trend)
So, in my opinion, you can't use anything you learn for personal gain. If you use it to benefit others, it is okay. But we can only take advantage of the situation. It's like giving alms to a beggar on the street. It's okay if you give a few yuan or dozens of yuan. If you give a few yuan, not only will you not help him, but you will only harm him.
There are too many causes and effects, and you need to understand them carefully