I have been preaching through the 23^rd Psalm, and I have entitled this series of messages “Good Vibrations.” Good vibrations are important. Dr. Michael Jacobson cited a recent study in which patients were asked to recall various types of emotional experiences, while doctors monitored their physiological reactions. They were first asked to recall an argument in which they became very angry or frustrated. The patient was to relive that experience in their mind for five minutes. The doctors noted that these patients’ immune system became depressed and the antibody levels dropped 55%. Six hours later their immunity system was still depressed.

On the other hand, patients were then told to re-experience an event that involved love, care, or appreciation. This emotional reaction caused the antib…