I agree with the former respondent that, in general, religion is presented as a somewhat repressive force in Joyce's Dubliners. It is often associated with the elderly and with a lack of imagination and vitality. It is usally presented as conventional and uninspiring.
Joyce portrays religion as a constricting aspect of society, that it "paralyes" people so they are not able to live life as they want.
In the story,"the encounter", the boys have their magazine/story book taken off them by the priest father butler. this could be symbolic of how religion constricts people, they are unable ot have an imagination. Also, the boys deciced to go on an adventure, by "escaping" from the church school they attend.
"the sisters" is another example of how religion can be seen as a constricting factor on people's lives, there appears to be a lingering idea that Jack became a preist because his family wanted him to. That he was unable to do what he wanted, becuae he was constricted by what relgion wanted him to do. He is also seen in a dark room, which could be symbolic of how paralysed he was.
the girl in "araby" can't go tp the bazaar because she has to go to some convent over the weekend.