And NORSE CONTENT! OP: "very basic comparison between Icelandic, Danish, Norwegian, Swedish, & Finnish languages from the Stand Still. Stay Silent webcomic (which is set in a post-apocalyptic Scandinavia)" (with cats.
Sisu begins where resilience and perseverance run out. Sisu is the second wave of the mental stamina and integrity. It´s the very resource of mental strength which enables action in a ultimate circumstances.