Bip39 Vs Entropy values has to be sourced from a powerful source of randomness. This implies flipping a fair coin, rolling a fair dice, sound measurements etcetera. Do NOT use phrases from books, lyrics from songs, your birthday or steet address, keyboard mashing, or everything you think that is random, https://music-relax-piano98753.ziblogs.com/31494557/bip39-word-list-pdf-the-single-best-strategy-to-use-for-bip39