Mexican owner, might be a rabbit hole or two there?

blood makes cement harder, I heard from medieval researchers, it's an old custom of freemasons to build from stones and cement kind of mixtures, they used to add other biological ingredients to it too. Plants, but animal derived too. Eggs and milk have been used to glue paint making ingredients together, maybe blood works especially well because it has iron and makes stronger magnetic field. And of course blood sacrifice every time anything is built.

Told pre net. FK YES IT IS TRUE> BLOOD IN THE CEMENT> I was like WHAT THE FK< they said, "spirit cooking" told pre net. AND depositing also.