According to Osho, when a vessel truly becomes empty, its walls (the body) lose purpose and fall away; inner space merges with outer space—atman with Paramatman—so there is no barrier, no further 'pots' or rebirth. Emptiness wasn’t created; only boundaries were. With nothing to store, the container is redundant: this is moksha or nirvana.
When you stop wanting to fill yourself, the body’s pot isn’t needed, and your inner space becomes one with the whole.