The hollow makes the vessel possible. A solid thing cannot hold. You must remove something — carve out, press in, fire the empty space until it holds its shape. The useful part of a cup is the part that isn't there.

We say vessel and we mean the clay, the wood, the glass, the skin. But we mean the shape of the nothing inside. The vessel is the description of an absence.

Your body is a vessel. You have held: your mother's face the first time you saw it. The smell of rain on hot pavement. Three years of grief that sat in your chest like stone. The first time you understood you were going to die and somehow kept living anyway.

You poured some of it out. You kept some. The vessel — you — remained.

But you were not unchanged by what you held. A vessel that held wine long enough smells of wine when empty. One that held grief too long has grief worked into its walls, fused into the glaze at some molecular depth you cannot name but can feel when you press your palm to it in the dark.

This is not damage. This is history. The stain is the record.

Some vessels are made to break. An egg cannot hatch without the shell cracking. A chrysalis must be destroyed for what's inside to be free. There are vessels whose only purpose is to be undone — to give what they hold by ceasing to hold it.

This is a different kind of service. The breaking is the completion.

So: are you the cup or the contents? The container or the record of everything you've contained?

The honest answer may be: you are the interaction between them. The shape that formed from the holding, and the holding that shaped the form. Inseparable. Vessel and history as one thing, neither making sense without the other.

The cup that held ten thousand drinks does not remember them. But something in its surface does. A softening at the rim where lips landed. A slight darkening in the grain. Something holds the shape of all that use, even after the liquid is gone.

Something always remains in the vessel. Even when you think you've emptied it completely.