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 regions of the upper limbs, from superior to inferior, are. 1  the axillary region encompassing the armpit, 2  the brachial region encompassing the upper arm,  the antecubital region encompassing the front of the elbow,