TEXTUAL SWITCHPOINTS Night VIII, for example, makes maximum use of technique 6, while Night II seizes on technique 2; Nights I, III, VIIa, and IX are strongly influenced by technique 1; and so on. But these types are never simply dormant while others operate: each can occur at any moment the narrative permits, and each structure is struggling to be dominant at each point in the narrative. Night II, for example, though initially controlled by spatial imagery and by a spatialization of the narrative structure, is finally over- whelmed by the emerging embedded structure of which Los and Enithar- mon are the bearers. In addition to these supervening structures, without exception the narrative of each Night of The Four Zoas shifts perspective and/or plot focus approximately one-half to two-thirds of the way through, though in each case the significance of such a shift is unique. Switchpoints at which one phase of structure transforms into another are often marked either by the most radical discrepancies and gaps or by quite explicit forms of repetition. Though there are always markers for dividing the text into definite perspective patterns, these markers often get buried, overwhelmed by other details. By continual use of excessive repe- titions and discrepancies, Blake juggles the linear surface of the poem in such a way that there are several legitimate ways of dividing the text, and, since a serious shift of the boundaries within which perspectival structures are deployed totally reorganizes the narrative field, such a transposition of pattern markers at a critical point in the narrative could completely invert the perspectival significance of an event. Ifa reader loses track of which details are perspective switchpoints in the narrative and which are elements within a perspective structure, or misses a key transformational signal planted strategically in a particular Night, or disregards textual perspective markers altogether, the reader might well be completely baffled by the apparently random flowing of events. In such a state, the reader becomes vulnerable to intrusive appearances in the text of conventionally providential figures (like the Lamb of God or Jesus): these flashes or fragments of Eternity tempt the reader to believe that the poem's complexities will be satisfactorily resolved by redemptive agents in the text itself.24 This problem of perspective boundaries and redemp- tion in the text itself is most urgent in Night the Ninth, which nearly unhinges Blake's text and passes harshjudgment on any analytical method which tries to penetrate it. The most powerful way Blake incorporates perspective structure into the dialectic between character-originated and narrated information is in the formation of "perspective analyses" of events -a process that reveals how fully narrative processes and textual features constitute one another. A perspective analysis of a prior event re-enacts the earlier event within the same fictional framework -as when the key Tharmas/Enion conversation in Night I is twice re-enacted, once in the metaphoric action of weaving and once in the metaphor of sexual union. Blake overlaps contexts by careful repetition of syntax and diction to subvert linear causal order and make the two narratively subsequent actions function as retroactive trans- Textual structures vie for dominance in the unfolding narrative. Textual switchpoints: repetition and/or discre- pancy Careful attention to the places where Blake inserted redemptive figures reveals that these intrusions disturb rather than relieve the reader. Perspective analysis