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.
The Fascia and Muscles of the Upper Extremity. a. The Muscles Connecting the Upper Extremity to the Vertebral Column. The muscles of the upper extremity are divisible into groups, corresponding with the different regions of the limb.