Jin Xin finally understood Li Yawei's meaning.
The spatial interface is far from as simple as what one sees; what you see is only because it's been made visible. If it weren't for Giant Li constructing a pathway connected to the spatial interface, you might just keep walking forward like hitting a ghost wall, but never actually entering the spatial interface!
This time, he didn't use the superstitious term "ghost wall." He vaguely felt that these superstitions might actually be the obsessed beliefs derived from ancient and modern people who happened to see ancient high technology.
At this thought, he found himself feeling rather amusing.