The dream sounds to me like moving out has caused some issues with your family and you are now trying to find yourself after having resented your time with your family. Perhaps, the discussion on the dream with your mother is actually a symbol for your intuitive feelings about your mother and why she is the way she is.
This church sounds like a place you resent having to go. Basements in dreams usually symbolize the worst moment of our lives or the most uncomfortable darkest thoughts we think. If you are in this church basement it sounds like a symbol for having bad moment of really resenting having to see people you don't want to see and live in a way that you don't want to live.
Either way, you might benefit from using the site like dreambible.com for some ideas. Search a few symbols.