The album explores aggression and dark themes to mourn the deaths of
Max Cavalera's 8-month-old grandson, Moses, and his close friend
Dimebag Darrell.
Songs The album opens with an intro track "The Dark Ages", which continues into "Babylon", which explores worldwide chaos. "Arise Again" combines
Metallica-like riffs and
Sepultura-like echoes. "Corrosion Creeps" is dedicated to
Chuck Schuldiner of
Death. "Fuel the Hate" begins with the lyric line 'Monday, July 16, 1945, 5:30am', exact time and date when
'Trinity' nuclear test occurred. It was around this time that the lyrical themes began to move away from the earlier spiritual themes and began incorporating more violent and aggressive elements. Richie Cavalera, Max's son, co-sings on "Staystrong" as a tribute to youthful deaths of Moses and Dana. The outro for "Bleak" was recorded in an ancient temple in
Istanbul to capture echoes to include as common sound effect on this album. "Molotov" lyrics are in Russian, Portuguese, and a final verse in English. The performance of
Billy Milano, one of two guests for "Molotov", was recorded over the phone by Max. "Riotstarter" contains strong tribal chants, and "Innerspirit" blends clean and melodic vocals by the guest
Coyote over the roars by Cavalera. ==Reception==