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.
Definition of extremity. plural. extremities. 1a : the farthest or most remote part, section, or point the island's westernmost extremityb : a limb of the body; especially : a human hand or foot. 2a : extreme danger or critical needb : a moment marked by imminent destruction or death.