I noticed the comments on your prior entry about this and the question posed was if you were attracted to your professor. I am sure many students have dreams about the teacher...that is very normal. But if you believe if they are carrying some sort of a message, you need to use discernment.
1. Were you attracted to him before the dreams started?
2. Did you think he was attracted to you?
(Any of the above could have planted the seed in your mind for the dream.)
3. Is he married?

Most dreams are not of consequence. You may want to do some research on recurring dreams if this is of real importance to you. The mind is a mysterious thing, and open to many spiritual elements.