When you dream again, when you wake up again, all the objects are there. And all the thoughts and concepts are there. If I could explain that, you would be enlightened immediately. The word they use is potential. In fact, aki vuta means undifferentiated. Causal. Why causal? Because it's the source from which these ones emerge.
Swami Sarvapriyananda teaches one of the shortest and most profound upanishads accompanied by Gaudapada's Karika. This lecture covers Mantra 5-6.