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.
Relevant Anatomy. Vascular injuries of the upper extremity are defined as those occurring distal to the lateral border of the first rib. The axillary artery is a continuation of the subclavian artery and extends from the lateral margin of the first rib to the lateral margin of the teres major muscle.