Without getting to make this much complicating Op, that's literally a medium of customizing your seed phrase in other to keep it safe from disastrous occurrences such as fire and water eruption which may have the capacity to destroy (erase) those words if written in objects such as papers while in electronic (internet device) can also be disasterous with the affirmation threats. So you'll have higher chances to keep them safe if engraved it in durable materials to resist water, fire and even physical tamper that could lead to damages of the seed phrase from the storage system.



I think you need to also understand that your seed phrase must be absolutely complete as generated by the BIP39 wallet mechanism before it can be valid to give access to your wallet. Your seed phrase would either be 12 or 24 words and for stronger security you must provide them all if you must have access to your wallet. And to keep your wallet secured you must store your seed phrase in a very tight secured corner where only you can have access to it and don't trust your seed phrase to third parties.