The main goal of a deep tissue massage is to work out areas of pain and tension, as well as provide a release to knots and adhesions in underlying muscle and fascia. Experts recommend a deep tissue massage to clients who have some tolerance for pain and discomfort. Widely used to treat chronic aches and pains, deep tissue massage is a popular form of massage therapy. This technique targets areas of tension or tightness by applying concentrated pressure to the sub-layer of muscles and fascia, the connective tissue that surrounds your muscles.