Bip39 Rules. Theoretically, one can Imagine out the mnemonic phrase by his individual, but It's not Secure, because a human are unable to do a terrific career with the random generation. The easiest way to safe 1’s wallet is to take a mnemonic phrase generated by This system code. Warning: https://thesocialcircles.com/story4395653/existing-seed-phrase-generator-seed-phrase-bip39-things-to-know-before-you-buy