Infinitive clauses/for can't refer to an adjective before a noun

Hello.

I asked a question about it, and got one type of answer indicating that

"We are looking for an eager person to work in our company"

means:

"We are looking for a person to work in our company, who is eager."

and indicating that

"We are looking for a motivated person to work in our company"

means:

"We are looking for a person to work in our company, who is motivated."

So there is a different problem here and I want to ask it here.

If we have to read them in that way, What does

"The hardest book for me was Inferno"

mean?

According to that opinion,

We have to read it like

"The book which was for me and was the hardest was Inferno".

But it makes no sense to me again.

and

The best book for me to read was Inferno.

means:

The book for me to read, which was the best was Inferno.

Do you really think that English works like that?

They are really weird and poor.