sharp / favorable / advantage / benefit / profit / interest / to do good to / to benefit
利
=
刂
+
禾
:
Mnemonic symbol: the rocket Arianne, 亚利安娜.
Li Qingzhao (li) prepares to go back to earth in the Arianne rocket (利). In the space station's bathroom (Ø4) she prepares for the trip by stuffing lots of cereals (禾) into the rocket and sharpening (利) the tip of the rocket with a kitchen knife (刂).