The Authority of the Sages and the Limits in the Interpretation of Verses

Hello Rabbi Michael
I am reading your book "No Man Has Mastery Over the Spirit". Well, I have only finished the first quarter of the essay, but I cannot help but ask my questions. Indeed, perhaps I should wait until it is finished and perhaps I will read the entire trilogy, but my curiosity is stronger than me.
 
My question is:
From your words, you emphasize something that to a naive and searching believer like me always sounds extreme – the Sages were ordinary and wise people, prone to all possible mistakes, and not, as the masses of the people teach, superhuman beings. And indeed, I agree, this is proven by their words, even when they admit their mistakes. But not only in matters of science, but also in matters of Torah? In their interpretation of verses? In the laws that we read in the Mishnah?
From what I understood, and forgive me if I'm wrong, you say there that if something specific doesn't fit with the laws of logic, even if it's the interpretation of the Torah by Chazal (or perhaps something explicitly written), then a person can interpret it as they wish? You gave the example of a person who deals with external books, and that the Rambam himself dealt with this even though he ruled otherwise. On the one hand, I understand that things may depend on the person, the time, and the place, but where is the limit? Isn't there a danger that each person will assume too much authority for themselves?
 
 
In addition, weren't the sages themselves during the days of the Talmud who closed the door to not reflecting on their words, as it is said, "one who reveals a face in the Torah that is not proper"?
And perhaps this leads to another question – how far does the authority of the Sages extend? ? ? Here, the Rambam himself does not rule that one should lift one's hands from an evil spirit, but rather for prayer, while the Sages in the Talmud, as I believe, speak of lifting one's hands from an evil spirit, but the Rambam does not believe in this and changed it a bit.