Rent

A tear in the spiritual fabric of the world which allows essence to escape into the Oblivion.

Apparently can be sealed via ritual sacrifice of powerful supernatural persons.

Known examples include:

Hill of Golgotha sealed via sacrifice of Jesus Christ?
Mount Cootha sealed via sacrifice of Ulyana Olah?
Highgate Hill Rent a minor rent, possibly sealed?

Rent

Kapre Aswang Avandus