The other night i had a lucid dream. I dont remember how i became lucid but i guess i pretty much was lucid from the start. But anyway so i was just walking around my house (For some reason i cant go farther then down the streat unless its a place i really know well like my friends house) then all of a sudden i decide to sit down, Then my body floats up into the air and i cant get down or anything it decides to take me a nearby park, once i get there im pretty much like what the hell just happened. All of a sudden i hear my name from inside a shelter house, i look in there and 2 of my best friend in WL are in there, so i decide to go in, then im like “Hey man sorry im gonna bail on ya” And they were cool with that i tried to open the doors and they were locked, No matter what i did i couldnt get out of that damn truck, Tried changing the scenery, just tried phasing though it i even tried unlocking it. But it just wouldnt open. So i just spent the rest of the dream siting in a damn truck
Well, it’s safe to say there was a reason why the truck was there in the first place, and why you were in it. So, if you can’t manage to get out, why don’t you try and find a reason why? Don’t mind asking, it is always a good thing to ask for help if you get stuck anywhere 
Also try and interpret that dream! Why were you inside? What were you feeling? What does it represent? How would you go and really solve it?
Good luck to you ^^
Where did the truck come into play in your story?. as you did not mention
it until the very last word.?. or am I missing someting?