Dreams?

We all have dreams, some are physical,
like when you're little and say you want to be a movie star
or whatever you want to achieve in this world.
And then we have "spiritual dreams."
No I'm not talking in a religious sense. (yet)
But when I say spiritual I mean we have dreams
at night when we are asleep.
But what I'm wondering is what do they truly mean?
According to Cinderella
"A dream is a wish your heart makes when your fast asleep."
But is it possible to have a dream that has a hidden message.
Some sort of story that is just yours to figure out.
Is it possible to have someone tell you things you needed to know?
Or is it your selfconcious telling you what you want to hear?
What if you are sitting there with someone you thought you had lost forever?
What if they were telling you things you had wanted to hear for so long?
What if they were about to give you the answer to an important question you had had for them?
What if they almost made your life make sense again?
What if?
So let me sit and question aloud my thoughts.
Was it a message I needed to hear?
Or was it me wanting to hear these things so badly
that it was all my imagination? 
How can you tell?
Was it possibly, maybe, a little of both?
Was my mind sugar coating what had happened?
Or was it all real?
Was it a hidden message?
Or was it just something that i should think about more?
Was is it even a dream?
What are dreams?