乘虛而入

乘 = 北 + 禾 : Charlie Chaplin (ch) is riding (乘) a chariot through engine's entrance ((e)ng2). He is navigating using a compass rose (北) and keeps his four horses running by suspending cereals in(禾) front of them.

乘 = 北 + 禾 : Charlie Chaplin (ch) is riding (乘) a chariot through engine's entrance ((e)ng2). He is navigating using a compass rose (北) and keeps his four horses running by suspending cereals in(禾) front of them.

乘 = 北 + 禾 : Charlie Chaplin (ch) is riding (乘) a chariot through engine's entrance ((e)ng2). He is navigating using a compass rose (北) and keeps his four horses running by suspending cereals in(禾) front of them.

虚 = 业 + 虍 : Xu Xian (xu) and the bullfrog (业) were preparing for a football game in front of the space station (Ø1) and had already painted eye black stripes (虍) onto each other when suddenly a black hole (虚) appeared and sucked their eye black off again before collapsing.

而 = 𦉫 + 丆 : A comb. Albert Einstein is getting ready to go out just inside the entrance of the space station. He put up some loud music on the stereo and tries to comb his hair with his comb and the help of a wind wheel.

入 = 丿 + ㇏ : Mnemonic symbol: an enter key like on a computer keyboard.

There is a special area in the space station's bathroom (Ø4) which is filled with bananas (丿), but you have to hit an enter key (入) to enter (入). Rachel Rhinoceros (ru) uses a finger (㇏) to press the button and get access to the bananas.