Bip39 Seed Phrase. Push X to abort passphrase application and continue to keep enhancing the passphrase. Choosing Terminate after an abort will stop the process. BIP39 specifies a list of 2048 words from which the mnemonic phrase is selected. Just about every word signifies a variety in a binary sequence, https://webnowmedia.com/story4415652/bip-39-https-linktr-ee-bip39-the-bip39-wallet-diaries