This is the first, the wildest and the wisest thing I know: that the soul exists, and is built entirely out of attentiveness.
Mary Oliver (2006), poet
Awareness happens when the brain defines a thing, an event, a person, individually; like a snapshot. This still focus may last a fraction of a second, but for a moment the brain singles out the experience as important somehow. Awareness differenciates the mundane from a potentially bigger concept. Uninterrupted awareness leads to attentiveness; the link from one's mind to the Universe. What metaphysics defines as soul is really the bridge of attentiveness. The bridge crossing from one's physical person to other living beings, things and ideas. We don't see it, this soul bridge, but it makes up an entire dimension of human existence.