Your moral foundation. Are you dealing with a moral dilemma right now? Your dream may be reminding you of your morals in order to deal with the issue at hand.
Can also be symbolic of having faith, faith in yourself, faith that things will works out for the best. Are you in a situation where you need to rely on faith?
A place of worship in a dream can also refer to your marriage, if you married in a church, synagogue, etc.