You might remember the meaning of the character 爆 with this easy mnemonic:
I'm not afraid of fire (火). In fact, I think I can touch the sun (日) with two hands (廾) for one (一) to eight (八) minutes without water (水) to cool down, and my skin won't even crack.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.