text: Part 1 of 2. 
  
  You're still missing the essential point.   It's much bigger than you're getting at.  I don't know how else to communicate it. Let me try. 
  
  Perhaps it's best to start with the end in mind.  The end is "intimate union with God" (and this also demands that this union be 'in truth', ordered to God's will and plan). 
  
  This union can also be described as a "continual conversion" into the image of Jesus Christ, a continual "perfection" if you will. We must strive to become "partakers in the divine life of the Trinity" (using the graces that come from God) is another way that the Church refers to it.  Holiness. 
  
  So humans have been given various "faculties" to get them toward this end: A will (that can be and should be continually strengthened over one's life), an intellect that must be developed, a body (that allows a soul to serve God in various ways), appetites that need to be ordered to the good and the true, etc.