You might remember the meaning of the character 诞 with this easy mnemonic:
For the birth of my son, I've prepared a long speech (讠) about how his father slashed (丿) dragons with long strides (廴) and didn't stop (止) until he saved the love of his life, my son's mother.
Using mnemonics to remember the meaning of Chinese characters like has a huge impact on how long to learn Mandarin it takes.