You might remember the meaning of the character 审 with this easy mnemonic:
As a kid I had a weird urge to examine the sun (日) out in the field (田) with my naked eye, so my mom had to make sure I was always in a room with a roof (宀) over my head, and a line (丨) of sunglasses ready for me to use.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.