Of non-existence the use

Three [times] ten spokes unite in one nave.

Through its void, there is the wheel's utility.

By kneading clay thereby is made the vessel.

Through its void, there is the vessel's utility.

By cutting out doors [and] windows, thereby is made a room.

Through its void there is the room's utility.

Therefore, existence's thus being profitable [is] non-existence's thus being useful.

aug2024