How much power do formal institution have in our society.

I would say a lot because one day I watch this document about how churches have powerful impact on Hollywood actor. They would talk about how if a Movie contain a related topic about god the views will be large and mostly from christen people.  Plus I bet if anyone would say I don't believe in god or I dislike god in a large population oh the disdain stare and act that would fall onto them. And some of that disdain act would led to a horrible outcome.

Can one be too determine

Yes , someone can be to determine. When a person is to determine they will do anything to archive their goal. And sometime that anything can be life risking.  Yes, it is a good idea to have determination but not a determination that turn into obsessive. An obsessive is a one track mind and a one track mind is easy to misguide to a wrong end.

What do you think is the most importance quality of gothic stories

I think it is the ability to create suspense and mystery. Why because a suspense event just doesn't have the ability to frighten you but to also make you believe in something that is not even real. It plays trick on you mind and make you go against what you think. It's a element that isn't easy to commit but when it do it isn't something to forget about.

Do you agree that their darkness within us all

Yes because whenever something is able to reason they have the ability to display the right answer our the wrong answer. Meaning we all have the wrong answer within us but only some or most display the wrong answer.

Why can dreamlike setting be powerful in literature and film

I think dreamlike setting can be powerful because a imaginary mind can contain anything and everything. A dreamlike setting can even contain thing that even not even real.

Have your observed greedy behavior in other people

Yes, they would always want more than want they need. I was watching a movie with a greedy person. He would do anything  to get want he wanted. Even sinful thing.