I could swear that
@Salah WG was who said that
Yeah, i believe They are opposite of Rest of Living Beings
Everyone else have Physical Bodies & They Control their Haki to be able to Interact with Haki World (Sense, Touch, Conquer)
Gorosei are Haki Beings & They learn to Control their Bodies to be able to Interact with Physical World
Their Equivalent of CoO is learning to sense Physical World
Their Equivalent of CoA is learning to touch Physical World
Their Equivalent of CoC is learning to Conquer Physical World (Meaning a Full Body Release, which is what Saturn did, He summoned a Full Physical Form)
And just like CoC Conquers Haki of others (They Pass Out or be Intimidated)
Gorosei's Full Body Summon Conquers Bodies of others (They either Die or get Paralyzed/Damaged)
They are same Beings that exist inside DFs
And it's how Sabo was Injured, Imu didn't use CoA, He is Haki so his Touch automatically works on Logia Users