Dreaming Lens: Were you speaking in a language that you don’t know? Was the language real or made up? Was someone else speaking to you? Were you witnessing a conversation between others? Were you frustrated in not being able to understand, or were you able to glean some meaning?
Personal Focus: This interpretation applies only to a language that you do not know or was created out of the dream world. If you yourself know more than one language, then dreaming in different languages is a reflection of where you are in your life and what the language in question means for you from your past.
Words are the basis of all thought and all reality. When words that you do not understand show up in a dream, the unconscious is deliberately masking some information by changing the rules. Use the Dreaming Lens to assess the height of the stakes. This would apply both to the information that is being expressed by the unconscious as well as the emotional meaning attached to your reaction to being unable to decipher any literal meaning.
If you recognize the language being spoken by virtue of sounds and cadences, then apply whatever associations you have with that culture to the Dreaming Lens. If the language is made up and you can remember any specific words, sounds, or phrases, use them in your process to see if you can draw any parallels with words you know. There may be a rhythmic or phonic connection to the nonsense words of your dream. Do not be afraid of being overly literal.
If someone else is speaking to you in the dream, then the message is coming from the deep unconscious. If you are speaking the foreign tongue yourself, it may indicate that the new information is already integrated as part of you. More investigation will likely need to be done before you will be able to understand and utilize the information being presented.