忽

hu̅ = hu + Ø1

to neglect / to overlook / to ignore / suddenly

忽 = 勿 + 心 : Helga Horse (hu) got new bat wings (勿) and carelessly (忽) flies around in front of the space station (Ø1). Suddenly (忽) she realizes there's no oxygen to breathe and the shock is enough to have her heart (心) nearly jump out of her chest.

忽 character breakdown

忽
- 勿
  - 丿
  - 勹
    - 丿
    - ㇆
      - 一
      - 亅
- 心
  - 丶
  - 乚

勿

wù = w + Ø4

do not

勿 = 丿 + 勹 : Mnemonic symbol from the shape of the character: bat wings. The 丿 strokes look like the fingers of a single bat wing.

The elephant (勹) wants to eat a banana (丿) in the space station's bathroom (Ø4), but Willy Walrus (w) suddenly flies by (using bat wings (勿)), snatches the banana away and shouts "do not!" (勿)

心

xi̅n = xi + (e)n1

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

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.