Ysoscher Katz argues that elements of ḥasidic spirituality could help to enhance and revive Modern Orthodoxy, precisely because they are rooted in lived religious experience rather than rationalist claims about theological truth—about which modern Jews are apt to be skeptical. Katz takes as a model the spirituality of his father, a member of the Satmar sect:
My father . . . does not study Ḥasidism, nor does he want to understand it. . . . Ḥasidism is what he does, not what he studies. From his perspective, Torah is for study, Ḥasidism for practicing. . . . He stays away from traditional kabbalistic or ḥasidic texts. . . . He is so intimidated by their sacredness that he fears that his [very] touch would contaminate them. Yet, despite never having formally studied ḥasidic texts, he still is the quintessential Ḥasid. . . . Ḥasidism is how he lives his life. It is the prism through which he encounters the world and the ethos by which he lives.
He adores his wife, loves his children, cherishes his community, and reveres and respects his neighbors and fellow human beings, Jew and non-Jew alike. While there is nothing special about these emotions—many people love their family and surroundings—their flavor is unique. [His love] is ḥasidic love, deriving its passion from the ḥasidic teachings he has absorbed throughout his life. These teachings have filled his being with a deep religiosity, which, in turn, infuses his actions and emotions with a deep and robust spirituality.
Read more on Book of Doctrines and Opinions: https://kavvanah.wordpress.com/2015/05/31/torat-chaim-veahavat-chesed-rabbi-ysoscher-katz/