The occult significance of Aquarius is knowledge. Aquarius, the sign of the water bearer, is an eminently revolutionary sign. There are four types of knowledge or secret science. We need to know what these four types of knowledge are.
Upper limb. The upper limb or upper extremity is the region in a vertebrate animal extending from the deltoid region to the hand, including the arm, axilla and shoulder.
Part 2: Upper limb. The upper limb consists of four major parts: a girdle formed by the clavicles and scapulae, the arm, the forearm, and the hand. Although very mobile, the limb is supported and stabilized by muscles connected to the ribs and vertebrae.