“There are many other escapes from the empirical, external self, which might seem to be, but are not, contemplation. For instance, the experience of being seized and taken out of oneself by collective enthusiasm, in a totalitarian parade: the self-righteous upsurge of party loyalty that blots out conscience and absolves every criminal tendency in the name of Class, Nation, Party, Race or Sect. .. Yet it is precisely these ersatz forms of enthusiasm that are "opium" for the people, deadening their awareness of their deepest and most personal needs, alienating them from their true selves, putting conscience and personality to sleep and turning free, reasonable men into passive instruments of the power politician.”
Thomas Merton wrote more than 70 books, mostly on spirituality, as well as scores of essays and reviews. Merton was a keen proponent of interfaith understanding.
Interest in his work contributed to a rise in spiritual exploration beginning in the 1960s and 1970s in the US. Merton's letters and diaries, reveal the intensity with which their author focused on social justice issues, including the civil rights movement and proliferation of nuclear arms. He had prohibited their publication for 25 years after his death. Publication raised new interest in Merton's life.