Posted:
Simply put - KRISHNA/Vishnu or Radha/Lakshmi aren't restricted in anyway. They themselves don't leave their Dham when they come to the material world to perform their leelas.
For example, let's pretend we have two candles in front of us, one of them is lit.
We take the other candle, tip it so the wick can attach to the flame in the first candle, and we now have two flames, one on each candle.
The flame doesn't transfer - in other words, candle 1 doesn't get extinguished while candle 2 is lit, and it's the same fire.
Similarly, when KRISHNA comes down to the material platform to enact his pastimes, he expands himself. Likewise, Srimati Radharani and Sri Lakshmi Devi expand themselves. Both are still in their respective dhamas, but they are simultaneously present in the material world. They are not restricted by the constraints of material nature.
Thus, it's perfectly plausible that Radha and Rukmini were just as different as Vrindavan KRISHNA and Mathura/Dwarka KRISHNA. They are the one and same, but at the same time they are different.
