其
=
目
+
八
:
Mnemonic symbol: the shape of 其 looks like a watchtower. The Queen of Hearts (qi) is on lookout on the watchtower (其) in the space station's kitchen (Ø2). The Eye of Providence (目) helps her to look out for intruders. They also spread some eight balls (八) for possible intruders to trip on.
心
=
乚
+
丶
:
Marie Curie (xi) uses a shovel (乚) to dig a hole in front of the encampment ((e)n1). She wants to bury her heart (心). To the side are three petal leaves (丶), with which she wants to cover it afterwards.