The Events Beforehand

Going back a few days, Rean and Roan's group had also discovered several structures of the Spaceship on the outer side. However, finding an entrance proved impossible. Everything was securely locked, and attacking the hull was futile due to its auto-recovery system. 

They had Luan use his eyes to search for different points of stagnation in the space around the ship. To their surprise, no matter how far they traveled, the stagnation remained the same. Luan's idea of using the different forces of stagnation to find a path didn't work at all. The only positive aspect was realizing that the ship could spread this effect uniformly throughout. This suggested that the source was likely at the very center of the ship. But then again, how could they gain access to the insides?