Along with most other secret achievements in this game this achievement is story related and can't be missed.
Note: this must be done on solo campaign only
Halfway through level 1 on the resistance meter while exploring Faith's region you'll notice your screen start to go sparkly and not long after your screen goes white and you have to watch a cutscene (with some interaction), this is the first part of the achievement and the mission is called 'A leap of faith'.
Halfway through level 2 the same thing will happen and you'll watch another cutscene with some interaction. This time the mission is called 'The Bliss'. After it finishes you'll be awarded with the achievement.
Very easy, if you're playing the campaign solo you'll unlock it no problem while getting the resistance meter up.