A Course in Miracles (ACIM) is a non-dualistic spirituality which contains a set of guidelines regarding the psychotherapy of the split mind. Understanding these metaphysical aspects assists in the practical application of the principles contained in ACIM when making choices. Without actual application, these principles are just ideas; but with application they become an experience, and experience changes everything. The metaphysical portion is a great identifier of the ego's judgmental thought system as well as a heavenly reminder of what is true about ourselves.

Looking at metaphysical descriptions on paper and becoming aware of their attributes is of great benefit in knowing what you are choosing both for and against. Keep them handy, and refer to them often as you navigate the choices in your life.
Here are some very simple points to consider about the metaphysical aspects of ACIM:

The Un-Healed Mind - the super-unconscious mind is where the "tiny mad idea" of separation began. It is accessible via the conscious awareness of what is going on in your life. The ego doesn't want you to remember that the idea was just a choice; but the mind remembers acim it came from. It naturally returns to peace when you choose the Holy Spirit Right Mind.

The Split Mind - the unconscious mind contains sin, fear and guilt from that original separation idea. This is the basis of the ego's thought system of judgment as it divides out. Remember the ego's judgment above: Separation is a sin punishable by death. For having separated, it now places guilt in the mind; and says you must be fearful of the now vengeful God who wants to kill you for what you've done. The kill or be killed (one or the other) ego judgments as seen in the sub-conscious and conscious behaviors begin to make sense considering their origin in the mind.

The Right-Mind - the split mind and the two conflicting thought systems is very evident. Compare the two sides to know what you are choosing in any given moment. These very clearly illustrate the psychotherapy of the mind and having lists makes it readily apparent why one system of thinking hurts and the other heals. You can only choose one thought system, or interpretation, at a time because it is always one or the other. You still retain the decision maker. Which one will you choose?