The goal of the chiropractic adjustment is to correct the spinal subluxations detected during the examination. To do that, the doctor applies pressure to the bone and "unlocks" it from its improper position. The bone will then be free to align itself correctly.
Many people think that the chiropractor forces a vertebra back into its "proper" place. But only the individual's own Innate Intelligence knows for sure what the proper place for each bone is. The role of the chiropractor is to free up the vertebrae. Then, the body can do its job and put them back in the correct position.
Unfortunately, the muscles connected to subluxated vertebrae get used to their positions and have a tendency to pull the bone back out of place. It may take several adjustments before the adjustment "holds," and the bone settles into its proper alignment.