In former times (昔), at the end of the day the sun (日) used to go down in a well (井) in front of the space station (Ø1). Xi Shi (xi) made the sun go out by pouring a milk shake (mnemonic symbol for 昔) over it.
Malte Monkey (mu) is setting up a Christmas tree (木) in the bathroom of the space station (Ø4). He decorates the tree with eight-balls (八) and puts a holy cross (十) at the top of the tree.