About the cultivation mat...
From his office, Lex was handling the various situations while standing and looking out the window. Despite the layout of the Inn staying the same, the difference was immense. The previous Inn eventually became quite large, and the limit of the sky was massive, giving enough room for flying cities, mountains and ships to hover about above the Inn.
But even so, now it actually felt like he was in a real world rather than an enclosed space. Up in the sky, there were a number of suns giving them light, rather than a projection of a sun. Though, if one was being technical, the suns in the sky were not stars, but rather a number of orbs of a special spirit crystal that was slowly dissolving in the air.