Does something seem to never end?
It could be there are no boundaries to yourself, which were so far away.
The singular man is you, and maybe to find your unique character you need to be assertive, have more control, or gain confidence.
Or maybe also having no ceiling means wanting no limits on yourself, and no walls means this.

So maybe you feel naked or unclothed in this strong character, with no defining features yet.
But you can mould yourself, as clay, that sets into reality.
This side of you couldn't see. But opening his mouth is expressing yourself, as you divided yourself or differentiated your formless mass inside.
For fulfilment, and the waste below it, which you could apparently partly see through. This didn't hurt you of course. They were reflective like you, and maybe it was clear to you that your feminine side which covered them, perhaps passivity, or how you normally are in this context, might have been superficial and useless and not even a tissue.

So it seems you cut off the waste of your self expression or communication, and swallowed it where it will be gotten rid of I imagine. But also may show your fulfilment in this has been wasted.
You felt sad but curious at this process can mean how you felt and wanting to fix it, even wondering why you have to do it.
So I think you, Brittanyking, had an operation recently, done by yourself. Or you thought it.

Is this it though? Or a different context maybe.