The spirit adjusts itself, according to the nature of the mind. It’s the spirit that nourishes the physical body too. When you experience the whole mind, the first time you realize that, all your thoughts, imagination, feelings, or emotions is only because of the spirit, tied around the mind and body in a certain way.
The Bible teaches that we consist of body, soul and spirit: “May your whole spirit, soul and body be preserved blameless at the coming of our Lord Jesus” (I Thessalonians 5:23). Our material bodies are evident, but our souls and spirits are less distinguishable.