Under normal circumstances, dual cultivation cannot help in realm breakthroughs. In the past, it was only possible to gain certain insights from the interchange and fusion between both parties, which could aid subsequent personal breakthroughs, rather than achieving breakthroughs directly through the energy provided by dual cultivation.
Simply relying on energy accumulation is impossible to affect the threshold above the Imperial Realm; being "Imperial" either is or isn't.
Yet, Ye Jiuyou gave so much, and it wasn't just enough to assist in breaking through, but there was also a large amount of Heaven and Earth Enlightenment.
