Some Thoughts on the Soul, the Trinity and The Republic

Deut 4:9 “Only take care, and keep your soul diligently, lest you forget the things that your eyes have seen, and lest they depart from your heart all the days of your life. Make them known to your children and your children's children
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I like this - "keep your soul diligently" - it really ties in well to the Dallas Willard book I've been reading, "The Spirit of the Disciplines" in which he delves into the nature of the soul. Plato's "Republic" which I have also been reading recently, has lot of commentary on the soul. I have always understood my soul to be the part that God breathed into me to make me uniquely human. When I was younger I had a much more distinct sense of where my body ended and my soul began, but in the past few years I have developed a much more Catholic opinion of the incarnational relationship between body and soul. I confess I have not done any word studies and therefore read a bit of ambiguity into the word "spirit" - especially as it relates to the nature of animals. Some people use the word "spirit" as a synonym for soul. I don't believe that's accurate. I do believe that there is some kind of a parallel between our soul or spirit with the Holy Spirit. That is to say, looking at the nature of the Trinity gives us a perfect example of how we were designed to be unified in mind, heart, strength and soul for the purpose of relating to God and sharing His joy. To keep one's soul diligently seems to imply that the soul is like the natural physique, perhaps prone to certain elements of unhealth. I imagine my own soul, lounging on a couch, getting fat on selfishness. Keeping my sould diligently would require me to get up and pursue those things which are healthy for a soul - the spiritual disciplines. In order to motivate myself to do these things, I should call to mind the nature of that life, remembering the significant divine markers that God has used to get me off the proverbial couch.
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"Make them known to your children and your children's children" - places further onus on me to "be" the sign that helps another person/child escape the life of soul-captivity. Socrates certainly diverges here (Allegory of the Cave). His conception of the soul's captivity seems similar, but I believe a closer analysis shows that God's cave is quite different. Socrates would like to make mind and soul equal and neglect the body. God never intended for there to be such a chasm between soul and body. Jesus, the "body" of Christ, felt separated from the Holy Spirit and God for a moment so that we would be able to "cross" that chasm with him when he finally emerged from his cave. While Socrates seems bent to share some kind of philosophical gospel, he does not seem to love all men in the same way, nor does he have an affinity for his children.