The successive thoughts emerge out of unknowing but are always familiar, as if you've already thought them in some other, past or parallel mentalisation. This distinguishes them from the furniture of the world whose otherness is reliable. Looked a more closely the distinction breaks down somewhat, your thoughts are somewhat alien and even places you've never before visited have a hidden familiarity, a slightly spooky quality as if there really was a proleptic life-review. Its madness to do away with the distinction but perhaps the point is to seize the subtle identity behind it. In a lucid dream the most fascinating thing is that you know your mind created all this solid-seeming stuff - you can bang your fist against the wall and you'll feel it, or feel something. Isn't that the same as waking life, mind made and with the otherness too, mind made?