Rationalism: 1. Theol. a. The practice of explaining in a manner agreeable to reason whatever is supernatural in the records of sacred history. b. The principle of regarding reason as the chief or only guide in matters of religion. 2. Metaph. A theory (opp. to empiricism or sensationalism) which regards reason, rather than sense, as the foundation of certainty in knowledge 1857. (Shorter Oxford English Dictionary of Historical Principles)

"Within the dimension of historicity in general, which is to be confused neither with some ahistorical eternity, nor with an empirically determined moment of the history of facts, silence plays the irreducible role of that which bears and haunts language, outside and against which alone language can emerge - 'against' here simultaneously designating the content from which form takes off by force, and the adversary against whom I assure and reassure myself by force. Although the silence of madness is the absence of a work, this silence is not simply the work's epigraph, nor is it, as concerns language and meaning, outside the work. Like nonmeaning, silence is the work's limit and profound resource." (Derrida quoted in Lucy, 1995, p.54)

There is no outside-text. Il n'y a pas de hors-texte. There is no outside-reason.

Spiritualism unsettled rationalism in a reasoned way. It could not do otherwise. It showed reason it's limits. To believe in ghosts is not to be mad. Or then maybe it is. But it is not unreasonable to believe in ghosts or to be mad.

We can no less dislocate spiritualism from rationalism than we can dislocate memory from history or fathers from mothers. There are no grounds on which to do this.