Sonder adds significant firepower to the band's arsenal, blending the harsh abrasiveness of One (2011) and progressive ethereal elements of Altered State (2013) with the accessibility of Polaris (2015). Sonder is streamlined, honest and direct with all the trademark TesseracT dreamy atmospherics and bending grooves.

Singer and lyricist Daniel Tompkins explains the concept behind the new song: “Far too often we find ourselves lead into conflict and inner turmoil. Life is surely a battle, history has a bad habit of repeating itself and when living with the constraints of an onerous life it’s easy to overlook the greatest gift we’ve ever received: life itself"