The project's title refers to the 'unity of opposites' concept, which is the central category of many philosophical discourses [1] The project begins its story in 2012 as an instrumental act drawing inspiration from progressive rock and post/math rock genres.

[5] During live tours and performances EaS shared a stage with Pain of Salvation,[6] Long Distance Calling, Sólstafir.

[7] The third long play album "Mercurial" was released in 2021 and was signifying the new era for EaS .

The album's concept is using the alchemical process as a metaphor for a psychological investigation.

[8] The record is featuring vocals in every song and was created in close collaboration with musical and film producer Alexander Perfilyev.