"The illusion of control." GR Part 1 Section 5

[jbor at bigpond.com]

"Once transected into the realm of Dominus Blicero, Roland found that
all the signs had turned against him. . . . Lights he had studied so  
well
as one of you, position and movement, now gathered there at the
opposite end, all in dance . . . irrelevant dance.  None of Blicero's
traditional progress, no something new . . . alien. . . . Roland too  
became
conscious of the wind, as his mortality had never allowed him.
Discovered it so . . . so joyful, that the arrow must veer into it.  The
wind had been blowing all year long, year after year, but Roland had
felt only the secular wind . . . he means, only his personal wind.
Yet . . . Selena, the wind, the wind's everywhere. . . . "

This is Peter Sascha (dead, a spirit) speaking through Carroll Eventyr  
(alive, in Snoxall's pub), passing on messages from Roland Feldspath  
(dead, another spirit) to Selena (alive, also in the pub), Roland's  
wife. It's a seance, so partly it's woo woo stuff in terms of the  
language and setting.

Later on we find out that Roland worked for the Nazis designing  
"control systems, guidance equations, feedback situations" (238), so  
part of what he's talking about here is the rocket, and it's arguable  
that he worked under Blicero at Mittelwerke. But I agree with David &  
David that the opening sentence, "Once transected into the realm of  
Dominus Blicero ... ", is just a way of saying 'once he died and became  
a spirit', or 'once he crossed the line between life and death'. (It's  
phrased using a maths term, which is neat, considering the work Roland  
did.) I take the paragraph to mean that once he died he realised that  
the assumption he had been working under in designing the rocket  
(absolute accuracy and control) hadn't taken into account factors like  
wind shear (and the workings of the supernatural too, I guess).

http://www.geo.mtu.edu/department/classes/ge406/jmedward/windsheer/ 
how.htm

He goes on to make a connection between the work he did designing  
guidance systems, and the mythology of the rocket, with the mythology  
of the capitalist market economy. (At his later, and only other  
appearance, Roland admits that "[h]is cryptic utterances that night at  
Snoxall's about economic systems are merely the folksy everyday  
background chatter over here, a given condition of being." He's  
"hovering" over "Slothropian space" at this point, a sort of  
Counterforce agent working on the Other Side, as it were. See pp.  
237-239.)

I think Pynchon's sentences parse perfectly well. Note that even the  
ellipses (four dots vs three dots) indicate whether the long pause  
comes at the end of a sentence or in the middle of the sentence.

best