It can instantly format itself and purify the filth in the extended region, that is, cleanse all the impurities within the Divine Kingdom centered around it. But activating this function also invalidates the authentication between the Giant Spirit and the Divinity.
In that case, reauthentication is needed to reclaim the Divinity.
We only learned this secret during Sulguk's downfall. When he was polluted and dying, his Divinity activated the format, giving Sulguk a final desperate chance, enabling his remains to fall into the material world, later giving birth to Vam.
Although theoretically, as long as the new god reacts fast enough, secondary authentication can still be completed, you must understand, Murphy, the Sentinel Corps will not give us a second chance.
