posted August 25, 2011 07:55 AM
OK, my interpretation may be quite vague here, but let's have a go 
I see the destryed city as the crumbling of a belief system, possibly yours, or someone close to you.
It may have a politcal nature to it, but due to the Christian group, I suspect there may be strong religious considerations.
You may find that your old world view is no longer serving you, and in entering the church, you may be seeking a higher understanding of life. This may or may not result in a spiritual stance, but it could purely be a more deep-seated principle in development, that encompasses more than just the material and the cerebral.
Churches can represent refuge in dreams - your dream quite specifically deemed this so.
Perhaps your boyfriend's beliefs are currently in conflict with yours and you are recognising the need to develop your own belief system aside from those who love, and who therefore, naturally influence your thinking.
This is not negative, provided no one is pushing their beliefs on you, and provided you are still loved and respcted for your individual principles.
If the man was unknown to you I suggest he was a reflection of your animus - the masculine aspect of your psyche.
Crying can be the need to cleanse, and express emotion. You may feel there are things you cannot express safely in yoru conscious life.
But I suspect it is recognition of the loss of prior beliefs. Every loss generally has a grief associated with it, no matter how much benefit the loss is.
The people around you imply that you are supported, both by many aspects of yourself, and possibly by established structures in waking life.
The square can indicate a perfect balance - all sides in harmony with each other. Another interpretation is that of spirit into matter - perhaps you are on the verge of solidifying a principle or interest into your material or social life.
Because you were crying in the square, surrounded by the people, you may be anxious that you will not be accepted, but I don't feel this is the reality, and if the city truly represents the breaking down of old ways of thinking, it is a great time to develop courage and to create the new.
It might be worth considering joining a group of interest, it seems like a good time to connect with people.
I may be way off here, but I am only the bringer of suggestion.
Only you know the truth and language of your dreams.
With attention, it will come clear to you.