very interesting question, not the same but similar question  here

Usually by the time I try to communicate with her she goes !!!!!!!!!!!! haha

Ich träume Deutsch!...na und?

Surprised you left out the divine language...arabic (pun intended, big time).........

And.....you also left out Hebrew....ahhh

@fozolie,

Your prior survey question could have been my followup one.  Some consider innate language's primary function to be as a means for forming & organizing at least part of our thought process.  The role of a particular externalized language, such as Persian, English, etc., in dreaming & conscious thinking probably depends on how "comfortable" one becomes w/ such languages.

@amirkabear4u,

Maybe she's hurried out of your dreams to greet you in your waking moments.

@ahang1001,

I'm surprised your dreams are in German.  Given your talent & proclivity, I would have thought your dreams are manifested in some form of musical notes or themes.  (The image I chose for the question, could be for someone like you.)  So, in everyday conversation, are you as comfortable and indulgent in German as in Persian?  In response to fozolie's earlier survey, you suggested that those in diaspora think in the language that they converse in.  But many converse in dual languages.  How is thinking divided between the 2?

@Ex_CoP,

You seem to be much surprised by the machinations of your own imagination.  Anyhow, I don't get the pun you intended w/ "Arabic"; must be very subtle.  As far as I can gather from your comments, you have an aversion towards the semitic languages of Arabic & Hebrew, which would probably be the stuff of nightmares for you.  So, I wish you many pure and uplifting (day)dreams in the Aryanic language of your choice.