I think Aiki refers to a state wherein a person moves in accord with the ki of the universe. You do without doing, move without moving, you have no form, and technique spontaneously happens, exactly appropriate to circumstances.
The mind does not conflict with anything, it just touches the universe at the surface, allowing no space in between but not pressing into or clashing. And the body is perfectly in sync with the mind.
Some of this sounds like the concept of mushin. Do you see them being inter related or as someting different?