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 uppermost of the three regions of the throat (pharynx), situated behind the nasal cavity and extending from the posterior nares to the level above the soft palate. On the posterior wall of the nasopharynx, opposite the posterior nares, are the pharyngeal tonsils.