Bip39 Passphrase. Entropy values must be sourced from a strong source of randomness. What this means is flipping a fair coin, rolling a good dice, sounds measurements and many others. Never use phrases from books, lyrics from songs, your birthday or steet tackle, keyboard mashing, or nearly anything you believe https://directorytome.com/listings13092560/bip39-online-https-linktr-ee-bip39-the-smart-trick-of-bip39-list-that-nobody-is-discussing