Desu the wise once told me of the legend, of "Colandorf"
"Tears of the Kitchen"
"Yes. As I see it, Colandorf, and all that he is, was sealed tightly in Rauru's magic tupperware, which was sealed within many layers of (probably weaker) Sheikah tupperware, and could have stayed that way indefinitely, until Vatti burped it. That burp was all Mummydorf needed to send out a portion of himself, leading to the many "births" and even more resurrections of Colandorf, many of whom kept attacking the tupperware, ultimately weakening the seal until he could manifest directly, as the Calamities. Then, with the last Calamity, the final tupperware was broken."