I found an interesting article I would like to pass along about the possible use of consciousness. The author states that consciousness comes from the necessity of having volitional movement in order to adapt to our rapidly changing environment. He postulates that without volition there would be no consciousness and vice versa.
Now how does quantum physics play into all of this? I wonder whether consciousness is some kind of constant quantum state observer choosing the reality that we experience. If this be the case then there's no wonder why mindfulness (nonjudgmental awareness of ones thoughts, perceptions, actions, and essentially volition) brings us closer to an Ultimate Reality in which psychology, physiology, physics, and spirituality explain so nicely as a unified whole.