n0m: “Why should we know how to live our life? It’s just do what Hashem wants…. Enter Arizal.. Baal Shem…”
Because without these great Torah leaders and thinkers, together with others who are not affiliated davka with the above paths, e.g. Sfardim and Litvish, we would not be serving hashem properly, and we would be performing mitzvos אנשים מלומדה. Not that we aren’t doing so now, but hopefully these leaders/thinkers are awakening us at least somewhat.