Holy Connections

I am a bit confused about Holy connections from RoPtD: how do they work?

Is it enough if a priest says in a holy mess or something like this "All christians in thisscity/all sinners in this room/the magi from the covennat xy/ the one who murdered the woman?

Or what is the meaning of the rules?

Holy Connection , from page 48?

Holy Ranges , Durations and Targets (page 68 )

A Priest can have a Holy Connection to the Christians in his Parish who were at a Mass said by him.
He cannot target all the Christians in the city , as he is not the Authority over all of them.
He can target sinners by increasing the Individual Target to Group or Room.
Unless the Magi are part of his Parish , or attended a Mass said by the priest ,
he does not have a Holy Connection to them.
(if the magi attended one Mass , it is unlikely to have a connection duration of indefinite)
He can target a Murderer by fact of being a Sinner , but unless he had a Holy Connection to that person ,
they would have to be affected by some other Range.
Intervention (page 52) has a Base 20 guideline to harry a target
Understanding (page54) has guidelines on getting a Vision.
This could be to determine who the murderer is.

So, say the pope could affect all christians that celbrate chrismas or eastern or participate on a crusade?

I think it is a given that the Pope could affect all Christians who went on a Crusade.
Holy War inset on page 72.
Absolution of sins for a start.

If a Christian only attended Easter and Christmas ,
then the duration for a Holy Connection is probably hours or days ,
based on the Arcane Connection guidelines on page 84 in the core rules.

A Crusade would have a duration of the time the Crusade went for.
(From the official declaration by the Pope , not just any battles fought)

Mostly, they are exactly like Arcane Connections, except divine. By enacting a holy ceremony, a character with spiritual authority over two or more people can create a holy connection between them.

Perhaps the best example of this is the sacrament of marriage: the priest performs the ceremony, and the two people become one flesh, spiritually speaking. Each has a holy connection to the other. Other examples are Baptism, where the child gets a connection to his or her godparents, or say when a priest is ordained, creating a connection to his bishop.

I'd say that everyone who gets joined by a holy connection has to participate in the ceremony, unless you're using a miraculous effect. (That's Invocation/Blessing, right? Serf's Parma.)

That means you probably can't do what you're talking about here; holy connections are ceremonial and important, uniting the participants in the cause of the Divine. A character could solemnly swear an oath to serve a priest or a lord, for example, creating a holy connection between them, and a whole group of characters could make that same oath-- making them brothers in a sense-- but the connection would be between them and the father figure to whom they swear, not to each other.