Are there any Christian doctrines that cover lucid dreaming? Do any Christian traditions have doctrines that cover the issue of lucid dreaming? In particular, do any of these cover whether we control our minds at all times or if God can/does sometimes control them? 

Are there any examples in the Bible of lucid dreaming? If so does doctrine/tradition interpret these as something controlled by divine intervention or by the dreamers own subconscious?

Many religions acknowledge lucid dreaming as a spiritual gateway. I am not a Christian and I am just curious as to what Christianity views there are on this.
To answer the Bible part of your question, the closest Biblical example I could think of was when (apparently) Paul had a dream (or vision) which he says may have been not a dream but a genuine experience. I think that is pretty lucid.


  2 Corinthians 12:2-4
  
  I know a man in Christ who fourteen years ago was caught up to the third heaven. Whether it was in the body or out of the body I do not know — God knows. And I know that this man—whether in the body or apart from the body I do not know, but God knows — was caught up to paradise. He heard inexpressible things, things that man is not permitted to tell.