Note: When the Kidney Qi is deficient, it manifests its original elemental nature The Kidney belongs to the Water element.; therefore, one may dream of drowning at the water's edge.

Weighing just over one catty and two taels, they hang opposite each other beneath the ribs

There are two kidneys, weighing a total of one catty and two taels original: "一斤二兩" (yi jin er liang). In traditional Chinese measurements, a 'catty' (jin) is roughly 600 grams, and a 'tael' (liang) is approximately 37.5 grams. These specific weights are derived from the Classic of Difficult Issues (Nan Jing)., hanging symmetrically on the left and right sides of the body.