Most people come for massage because they are in some sort of pain. This can be due to poor posture and sporting injuries, but more often than not it is sitting at a desk for 8+ hours a day that does it (our spines are not designed to do that!). Tension in the body can of course be due to the emotional stresses that life can throw at us, and that is something we can discuss.
Whatever the reason for the tightness you may be feeling in your body, massage can help to smooth it all out. Some of the difficulties you may be experiencing are:
tight neck and shoulders
repetitive strain injury
lower back pain
"To keep the body in good health is a duty...otherwise we shall not be able to keep our minds strong and clear" Buddha