空穴來風未必無因

空 = 工 + 穴 : Mnemonic symbol: an air conditioner

空 = 工 + 穴 : In front of the engine, Karl Koala found some very special cave paintings. Using steel beams he constructs a protective cover. He also installs air conditioning to make the best environment possible to preserve the cave paintings.

穴 = 八 + 宀 : Xu Xian presents his newest piece of art: Cave paintings painted on a gigantic eight-ball. Somehow he managed to set it up inside the elevators entrance. For his great artistic achievement, he gained a honorary doctor, and proudly wears his hard earned graduation cap.

來 = 从 + 木 : Mnemonic symbol: mailwoman. Sir Lancelot (l) is visiting the mailwoman (來) in the airplane's kitchen (ai2). As a gift, he brought a Christmas tree (木) decorated with rubber chicken (从).

来 = 丷 + 未 : Mnemonic symbol: mailwoman. Lancelot (l) is super happy that his inflatable crocodile (丷) and live size Ai Weiwei (未) puppet finally arrived (来). The mailwoman (来) delivered them straight to the kitchen of the airplane (ai2).

风 = 乂 + 几 : Frankenstein's Monster has to wait in front of the engine. Because the wind is blowing, he uses pliers to disassemble a small table and builds a shelter with the parts.

未 = 一 + 木 : Mnemonic symbol: the artist Ai Weiwei. Shortly after finishing a new installation in the Eiffel Tower's bathroom (ei4), Ai Weiwei (未) is imprisoned by Willy Walrus (w), because—out of all places—Ai Weiwei put his new installation right into Willy Walrus's toilet. Ai Weiwei's installation is a Christmas tree (木) with a tiny, slightly tilted flute (一) on top. Ai Weiwei would really, really like to correct the tilted flute, but so far, Willy Walrus has not yet (未) let him out.

必 = 丿 + 心 : Mnemonic symbol: 忽必烈 [Hū​bì​liè​], Kublai Khan. Certainly (必) Kublai Khan (必) has to keep face, but he cannot hold it any longer. In the space station's bathroom (Ø4), He absolutely has to (必) tell Brunhilde (bi) his love for her strong character and offers her his heart (心). Brunhilde is a bit embarrassed because all she has to offer in return is a banana (丿). Kublai Khan feels like his heart has been crossed out (the 丿 stroke is crossing out 心 in 必).

无 = 一 + 𠂇 + 乚 : Mnemonic symbol: the philosopher Diogenes, who has nothing and wants nothing.

无 = 一 + 𠂇 + 乚 : Just inside the space station's entrance, Diogenes is annoyed by Willy Walrus, who's playing his flute. Diogenes just wants a peaceful time without being disturbed, so he cuts the flute into pieces with a pair of scissors, and threatens to beat Willy Walrus with a shovel should he annoy Diogenes again.

Mnemonic symbol: 無爲, wu2 wei2, the state of non-doing after having attained complete harmony with the Tao.

Willy Walrus (w) has attained Wu Wei (無) just inside the space station's entrance (Ø2), while from the outside it may seem like he is napping.

因 = 囗 + 大 : Mnemonic symbol: the close reasoner René Descartes.

因 = 囗 + 大 : In front of the encampment ((e)n1), René Descartes (因), Maud Younger (y) and a robot (大) are starting a big rave. The robot sits inside a big box (囗) and is the master of ceremony, while René and Maud are dancing on the square. They started this rave to collect money for a good cause (因).