Accepting that Man was created in the image of God it is biblically supported that man is tripartite with body, soul and spirit. In 1 Thessalonians 5:23 it states, “May God himself, the God of peace, sanctify you through and through. May your whole spirit, soul and body be kept blameless at the coming of our Lord Jesus Christ.”
To understand dualist interaction it is important to accept that the spirit and soul (mind, will and emotion and conscience) are immaterial and cannot be reduced to the function of the material brain. Dualism refers to the interaction between what is immaterial and what is material, or physical. Jesus’ spirit as a human being, was indwelled at His baptism by the Holy Spirit. He was also divine and was in intimate communion with God the Father throughout His life and teaching, obedient to the counsel of the Holy Spirit even to His death on the cross as a sin sacrifice for fallen mankind. We shall soon consider the mechanism for this interaction derived from current findings of neuroscience and addressed in my second book, Chapter Five. The first part of that chapter explains the immaterial spirit and mind.