The claim that the Primordial Beginning had acknowledged the First Emperor was without basis; it was merely a thought that surfaced in the minds of the two Divine Repository Venerables when they saw the Desolation Halberd. One must understand that, given their status, thoughts would not arise without reason.
Otherwise, why did neither Immortal Emperor Jiang Li of World Number 390 nor the Idle Jiang Li of World Number 809 possess the Desolation Halberd? What being acknowledged by the Primordial Beginning meant, no one knew. The Primordial Beginning was born before the Heavenly Dao, yet he had died.
As for where his corpse was, nobody knew. The remains of the Primordial Beginning were not within the Heavenly Dao's control; even if the Heavenly Dao wished to search for them, it could not find them. In the unseen realm, the remains of the Primordial Beginning possessed an indescribable and mysterious power that prevented them from being found.
In theory, the remains of the Primordial Beginning could not be refined, let alone be refined into the shape of a halberd. All of this was evidence that the remains of the Primordial Beginning had acknowledged the First Emperor.