The phrase Aiki in the body, as a thing in itself, implies Aiki can ever be independent or separate from uke.
Seriously? If I eat a grilled sanma, I have sanma in my body, completely 100% separate and independent from an uke. Unless I ate my uke also. Or...unless the sanma is my uke!
So you are saying that AIKI IS UKE! I get it! Cannibalism is the key to internal power!