Bip39 Passphrase. Entropy values have to be sourced from a robust source of randomness. This implies flipping a fair coin, rolling a fair dice, noise measurements etc. Never use phrases from guides, lyrics from music, your birthday or steet tackle, keyboard mashing, or just about anything you believe is random, https://seo-webdirectory.com/listings13065095/bip39-words-https-linktr-ee-bip39-details-fiction-and-bip39-word-list-pdf