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.
Heavy dull pain developed at once, extending down the upper extremity. Shortly after passing it, we entered a lake or enlargement of the river, which we crossed to encamp at its upper extremity. These four cranes are arranged symmetrically around the hammer, and are supported at their upper extremity by metallic stays. Impregnation takes place at the upper extremity of the oviduct. The extremity joining the peduncle is the basal, or anterior; and the upper extremity is the apsiral, or posterior. The oars are long and slender, with a peculiar bulge at the upper extremity to balance them.