You might remember the meaning of the character 遮 with this easy mnemonic:
Walk (辶) on the dotted cliff (广) and try to cover your face with two hands (廾) to hide from the enemies. One (一) wrong move and they'll use us to kindle (灬) fire.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.