Papa Emeritus III told Diablo Rock:

At the beginning of the pre-production we had the clear need to introduce an interlude between a couple of very intense songs, so we took a fragment of a song that is not in this album (which we, as we often do, leave for later).

The first half of the song is a small piece like a climbing spider that comes from a song called “Rats”, that you will know in a couple of years.