former band Sabbat to form Skyclad, in part because the band "wasn't going to go far enough down the pagan, British way that we wanted to do it." Consequently, the lyrics of Skyclad have been known to deal with pagan matters. The band Cruachan was also founded by a self-described pagan, Keith Fay. For Ville Sorvali of Moonsorrow, the label "pagan metal" is preferred "because that describes the ideological points in the music, but doesn’t say anything about the music itself." Other bands that also prefer to use the term "pagan metal" as a self-description include Cruachan, Eluveitie, Obtest and Skyforger. In contrast to bands with pagan themes, some folk metal bands such as Orphaned Land have themes of Abrahamic religion. Nature is a strong influence to many folk metal bands. Groups such as Korpiklaani, Elvenking, Midnattsol and Vintersorg have all based lyrics on the subject. For the band Agalloch, nature is an embraced theme "because we are siding with what is essentially the victim in a relationship where humankind is a disease." All the members of Skyclad are supporters of "organisations like Greenpeace and others, for those are the ones who stand up and take on the battle" between "people who want to save the planet, and people who want to destroy it." The pioneers of the genre Skyclad avoided fantasy lyrics because "there was already enough fantasy in the world, told to us by our politicians every day." Nonetheless, other folk metal bands have been known to feature fantasy themes in their lyrics including Ensiferum, Midnattsol and Cruachan. For Elvenking, fantasy themes are used "as a metaphor to cover deeper meanings." Similarly, the fantasy themes in Turisas belie the coverage of issues "that are deeper and have greater significance." The Celtic metal subgenre is known to feature lyrics based on Celtic mythology. The history of the Celts is another popular source for the lyrics of Celtic metal bands like Cruachan, Eluveitie, Primordial and Mael Mórdha. Norse mythology can be found in the lyrics of such Scandinavian bands as Falkenbach, Týr, Finntroll and Mithotyn. Skyforger is known for featuring lyrics based on both the history and mythology of their Latvian culture. Other bands that have treated history to song include Falconer and Slechtvalk. Many National Socialist black metal (NSBM) bands like Nokturnal Mortum, or Russia's Temnozor and Kroda have been known to cross over into folk metal, a circumstance