A vessel is a hollow container used to store liquid. Each infant, child, adult, young and old, is a vessel. As we grow, year to year, things we prefer to be defined as our making, or personality, gather at the bottom of the vessel. Liquid accumulates in the bowl. Sometimes we remove parts of our vessel we do not like, or we allow it to fester and wrap its tendrils around our hollow bodies like moss.
If we were to have all the same items and traits, for each and every vessel, each human would be and act the same. Scoff you may at the phrase we are all the same, but it is truth. Pour everything out of your vessel and you'd have nothing. Nothing except a wooden vessel. If you were to look into a mirror, you'd nod and say, that's me, but in a mirror you are only skin and flesh. If all vessels were left empty, you would just be another one. Another set of eyes, another pretty face.
Who are you? Make sure you do not call yourself what others have defined you to be.