Here's a nugget I read to this morning by CHS:
The human spirit functions in God-consciousness, the Father. The human soul functions in the power of the Spirit, the Son. The human body functions in the power of the Word, the epistle. The Father gives us His thoughts to make us God-conscious. The Son gives us the power of redemption over self in the soul. The Word gives us life and direction in the path of light for the Body.