You might remember the meaning of the character 跪 with this easy mnemonic:
I injured my foot (足) when a magnet (⺈) fell off the cliff (厂) and hit a snake (乚) so hard, he bit into my foot. I'm in so much pain, I can only kneel down and I need a crane (㇆) to lift me into the ambulance.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.