The Slytherin house would probably be outraged. Snape is one of their own, in a sense. They would demand justice for Snape and might even use this incident to fuel their long - standing rivalry with Gryffindor. There would be a lot of tension and conflict within the Hogwarts community as a result of this act.
Some wizards might be shocked at first. They are used to Harry fighting dark wizards and creatures, not mountains. But if they understand the threat the mountain posed, they might support his actions. For instance, the Ministry of Magic might initially question him but then realize it was for the greater good.
Some in the wizarding community might be in awe. They would see it as a great honor for Harry and a chance for the wizarding world to gain access to an even deeper level of magic. After all, Hecate is a powerful figure in magic lore. However, there would also be those who are fearful. They might worry that this union could disrupt the balance of power that has been carefully maintained in the wizarding world for centuries.
Some in the wizarding community might be very accepting. Harry's friends like Hermione and Ron would probably be supportive, seeing how happy he is. However, there would also be those who are more traditional and would be against it. Pure - blood supremacists would definitely not like it and might cause some trouble. The Ministry of Magic might also be a bit hesitant at first, worried about how to handle the situation in terms of secrecy laws and the like.
The wizarding community would likely be shocked. Given the long - standing separation between wizards and Muggles, this would be a major deviation from the norm. Some traditionalists might be outraged and demand that Harry be held accountable. However, there would also be those who would be more sympathetic, especially those who have always advocated for better relations between the two worlds.
Some wizards might be very confused. In the wizarding world, they are used to magic and spells, not religious praying. They might think Harry has gone a bit mad or is dabbling in some strange Muggle practice. However, some more open - minded wizards could be intrigued and want to learn more about it.
Some fans might be shocked at first. But it could lead to a more open attitude towards fan - created works in the wizarding community. It might encourage more people to write fanfiction, knowing that someone as strict as Snape approves.
The Ministry of Magic would likely be in chaos. They would try to find a way to stop the spread and hold Harry Potter accountable. There would be a lot of panic among the wizards and witches, with many trying to flee or find a cure on their own.
Snape would probably be very conflicted. On one hand, he has a long - standing grudge against James Potter, Harry's father. But on the other hand, he loved Harry's mother, Lily. So, he might be cold at first, but then his sense of protecting Lily's son could kick in. He would likely be very strict with Harry, as he is with all his students, but also secretly keep an eye on him to make sure he's safe.
The Order of the Phoenix would immediately spring into action. They would start searching for Harry using all their magical resources, including spells like the Tracking Charm. Dumbledore would likely be at the forefront, using his vast knowledge and connections to try and figure out where Loki has taken Harry.
The wizarding world would be in an uproar. Phylacteries are associated with dark magic. Harry is seen as a hero, and for him to create a phylactery would shatter the image. The Ministry of Magic would likely brand him as a dark wizard or at least someone who has strayed too far from the light. His friends would be divided. Some might try to defend him, believing there was a good reason, while others would be horrified and distance themselves.