The difference between an Immortal Golden Immortal (IGI) and another IGI lies in the Immortal Techniques, Immortal Artifacts, Secret Techniques, and the number of Great Daos mastered.
"No wonder Divine Spirits can wield a power like Divine Will, which is stronger than the Divine Sense Ability. The essence of Divine Will is actually inferior to that of Divine Sense Ability. In terms of purity, one is three, the other is ten. However, Divine Will can leverage three to pry a hundred, then use a hundred to contend with ten..."
One is breadth, the other is purity.
When the spirit level of an Immortal Golden Immortal continues to rise, and the purity is refined, the Divine Will of Divine Spirits will hardly sway them at all.
Just like a thousand pounds of cotton cannot crush a pound of steel.