We can imagine that we are a flying duck, breezing through the sky, when in fact, physically, we can’t flap wings that we don’t have. That is what imagination does for us.
Consciousness is not imagination. It is awareness. You are aware of the flying duck. But you are not the duck and you know it. You may see the duck as part of the larger whole but you are not imagining this. Your deeply conscious awareness brings this to your attention but it is not your imagination.
Unconsciousness also has nothing to do with imagination. Imagination is a mental faculty. When you are unconscious, your mind isn’t working. You don’t even know a duck exists, let alone picture yourself merrily flapping your wings at the local pond.
Imagination allows us to invent new ways of doing thing and to be creative. It can start with conscious awareness and move into growth from there. Unconsciousness is non-productive and leads to no creative growth.