obZen
excerpt via "8 Things You Didn't Know About Meshuggah's 'obZen'" by Dan Epstein (March 7, 2018):
""It's all about human evil" was how Meshuggah drummer and lyricist Tomas Haake described his band's obZen LP to Revolver in early 2008, shortly before the album's release. "And that's where the album title comes from. Instead of using the word 'obscene,' we mixed it with 'Zen,' as in you've found your balance and equilibrium as a human being in the obscene, in violence and blood.""
source: https://www.revolvermag.com/music/8-things-you-didnt-know-about-meshuggahs-obzen
VIDEO -- "Tomas Haake explaining the obZen artwork"
[Haake mentions the person on the cover is deliberately made to look as androgynous as possible and mentions the 3 armed pose symbolizes 666 as each hand is making the shape of a 6, to symbolize the "inherent evil of man"]: