(PS: Thank you SHETER100 for the 100 Qidian Coin reward, and also thanks for the slippers' 100 Qidian Coin reward! Thank you for your support, friends!)
Let us take another look at the Primordial World at this moment.
Due to the two worlds being entirely distinct realms, without Li Qingming relying on the faint connection with the Three Corpse Body, he wouldn't talk about returning to the Primordial, he couldn't even locate the spatial passageway.
Since Li Qingming's disappearance, The Three Pure Ones and Netherworld River caused havoc in Western Buddhism, turning the entire Western region upside-down. Countless Buddha and Bodhisattvas died or were injured, plunging the barely recovered Western land back to the times at the end of Dragon Han Calamity.