The doctors will examine your spinal column for misalignments (called vertebral subluxations) causing the spine and nerves stress. Vertebral subluxations can damage the nervous system and affect the workings of the entire body. If subluxations are present, The doctors will correct them with a chiropractic spinal adjustment in order to release the spinal stress.
Without subluxations the body will function better, have higher resistance to disease and express more wholeness (health) than a body with uncorrected subluxations. 
That is the essential message of chiropractic care.