mi casa es su casa

== Spanish == === Alternative forms === mi casa es tu casa (informal, to one person) mi casa es vuestra casa (informal, to many people) === Etymology === Literally, “my house is your house”. === Phrase === mi casa es su casa (formal) make yourself at home, make yourselves at home, my house is your house ==== Descendants ==== → English: mi casa, su casa; mi casa es su casa