The walls of containment – the interior may be shallow or deep, possibly dark. The enclosure, the outside – the exterior maintains the form, the line, the swell, the curve or the long straight edge.
A vessel can be composed of mud, grasses, plastic, wood, steel, in fact a myriad of materials. It can be constructed by birds, animals or insects as well as humans.
It can be as tiny as a thimble or as large as an ocean liner.
And when we enter the realms of metaphor, a person can be a vessel for good or evil.
The history of humanity is tied with mastering the creation of the vessel.