Igor, Kuren, and Joseph were all waiting for Kadi's response. They wanted to know what method Kadi was using to enable a continuous output of Spirit Power.
This was important for them because Kadi's method could save them a considerable amount of physical strength and Spirit Power. If they could collect all the incoming Spirit Power and then release it in one go, wouldn't that eliminate a lot of unnecessary hassle?
Furthermore, when the time was right, they could calmly consider how to find an exit through this two-way channel. Or, if that failed, even verifying Igor's previous speculation would be a significant step. If, as Igor conjectured, they could transmit information through this exit, they could contact Xiso and the others and find out what had happened in the outside world. Most importantly, they could inform those outside about their discoveries within the Inner World, allowing them to make informed decisions. That was the crucial point.
