The Space Portals in the Spiritual World are not merely about opening a door to separate a distance, but truly create spatial partitions, so typically when one goes through a door, the place they come out at is definitely not behind the door they saw initially, but at another location.
The extent of spatial separation that the "door" can cause depends on the spirit strength of the creator of the Spiritual World. Xu Huo can currently only use the "door" to stretch or shrink the gap between spaces, such as traveling between floors or through walls—it's merely shuttling. His Spiritual World's spatial effect hasn't reached the level of Bai Kou or the strength of actual space, hence the practical effectiveness also depends on whether the opponent is easily disturbed—clearly, Mr. Kang is not one to be readily influenced by mental interference.
