I have had many wet dreams and still do but it is only when I do not have any type of sex for about 5 days. I think the dreams come from the need I have to be sexually satisfied and my body and mind are reacting to this need. All
of my wet dreams are about boys and are almost life like, it is like really having sex. I do not believe that the dreams are from Satan as I do not believe he can enter my mind sleeping or otherwise. But he can whisper in your ear and get you thinking about such things before you fall off to sleep.
Is it your old nature? Yes I think so because my flesh strongly desires this
but I have always denied my flesh in real life. Do dreams come from God? Yes I believe some of them do, for many reasons like a warning or prophetic or knowledge of something he is trying to tell you and I am sure there are other reasons. I do not think you can sin in your dreams, although this is just my opinion. I think you can try and control what you dream about by what you think about and praying right before you go to sleep. My problem is
that I think about boys while laying in bed and then end up falling asleep.

God Bless

Blaze