So in short, the best method to keep your seed phrase safe is to bury it in your mind, so you are the only one who knows that and could have access to it.
You are wrong, that is one of the worst ways to store your seed phrase and a fast way to lose your coins or lock yourself out of your funds. There is no way you can remember the words for a longer period of time, you're surely going to forget some words or wrongly arrange them, you may also suffer injury or disease that could affect your memory.The best method is to have a physical backup and store it in a very safe location, adding extra layers of security is also recommended. If you want to commit your seed phrase to memory, it should be after you have done all this, you can now count what you have memorized as an additional backup.
