Dream about speaking unknown language is a signal for repressed emotional energies, fertility and virility. You are afraid to see your true Self and to be who you are. You need to organize aspects of your life before you can progress forward. Your dream signals discovery of something that you have repressed or stored in the subconscious. You need to remember to focus on each other.
Speaking unknown language dream stands for your fears about your own children and your ability to protect and to provide for them if you have some children in your real life. You are shutting out those who are trying to help you. You are butting heads with someone in your life. This is a portent for your repressed instincts. You are feeling locked out or denied of something.
If you dreamt about speaking unknown language:
You may be tempted to close your mind against an idea or plan that a loved one would like to go ahead with. Rather than being so totally opposed to it, it would help if you could talk honestly about why you are having a problem. This is the best solution.