love pact from blood to soul

its a type of pact that’s used by two people who love each other to the point they could die for each other. It can be used in any beliefs, first you need a paper and then you write your name, you need to write your intentions to the loved ones and at the end add a sentence “I promise that I’ll give you my everything from blood to soul” then your partner does the same, you both sign it by your names and your blood shaped like heart at the end you need to burn it to make sure no one will ever separate you such a cute marriage!!