: Regarding the use of enchantments depends on the setting of emotions

　　 To be honest, I don't really want to open a chapter for explanation, but there are so many questions that I have to explain a few words.
　　 may be the reason why the previous statement is not clear.
　　 First of all, learning magic in the HP world is not easy. It is normal to learn a simple spell for a long time. (For example, the fourth Harry learns the flying curse)
　　 So unless you have a strong IQ of the entire world, you must have something to balance the difficulty of learning spells.
　　 If you know a spell and wave a magic wand, you can release the magic; the young wizard only needs to participate in the seven-day Latin memory summer camp instead of studying for seven years in school.
　　The elements of this balance can be blue bars, spell slots, spell cast levels, cumbersome spell materials, complex and obscure spells; but none of these have "emotions" that can fit the HP world slightly.
　　 After all, HP's own settings have spells that require emotions to cast.
　　 The protagonist, as a traveler who has received decades of materialistic education, has never experienced mood swings.
　　 In the early stage, I couldn’t accept the emotional setting of the magical world.
　　……
　　 Then there is the patron saint curse.
　　 The patron curse is widely regarded as a kind of advanced magic, far above the level of ordinary wizards.
　　 When Remus Lupin mentioned this spell in the third part, he described it as "extraordinarily profound".
　　 "That's a very, very advanced magic..." This is Hermione's description when she heard that Harry was learning the Patronus Charm in the third book.
When Harry Potter revealed in the fifth book that he (a fifth-grade Hogwarts student) was able to summon a complete patron saint, Amelia Bones (the second-most powerful figure in the Ministry of Magic, law enforcement Director Secretary, a very powerful witch) once showed great admiration.
　　 The vast majority of witches and wizards cannot summon any form of patron saint, and even the invisible patron saint will be regarded as a sign of superb mana. Those wizards who can summon a complete patron saint are often elected as high-level officials of Wisengamao and the Ministry of Magic. ...This is the description of pottermore.
　　 posted so many above, just for one sentence, that is, "The Patronus Charm is not something that can be used by throwing a wand and just thinking about it!"
　　 The dementors are violent law enforcement officers of the Ministry of Magic. Is it okay to give others some face? If you can learn the spells of flipping them casually, Azkaban has become a playground long ago.
　　 Back to the topic, what the Patronus Mantra needs is "really happy memories."
　　What is real happiness? This thing may be a bit ideal...but it's definitely not the memory of you wanting to be a cat or dog, just feel happy for yourself.
　　 And as people grow older and mature, "happiness" will decrease.
When you were five years old, your mother bought you a lollipop, and you might lick it for half an hour. When you were ten years old, if you picked up a dollar on the roadside, you might be happy all day... Will he be so happy when he encounters the same thing in his teens?
　　 Even if you picked up a million on the street at the age of 30, you should think about how to quickly hand in the police uncle instead of smirking and happy.
　　 Okay, it’s a bit far away...
　　 To put it simply, the protagonist is not without the memory of happiness in the two lives; but either it has been too long, or it has not reached the standard of "real happiness".
the above!